Correspondence

[Corey White]

Correspondence

https://github.com/alt-magick/Correspondence

The Magick Correspondence Text Editor

Correspondence is a text editor that can toggle between code or normal text.
The code is defined in the source code and uses this astrology cypher as default:

A / Sun: ☉
B / Full Moon: ●
C / Waning Moon: ☾
D / Waxing Moon: ☽
E / New Moon: ○
F / Mercury: ☿
G / Venus: ♀
H / Earth: ♁
I / Mars: ♂
J / Jupiter: ♃
K / Saturn: ♄
L / Uranus: ♅
M / Neptune: ♆
N / Pluto: ♇
O / Aries: ♈︎
P / Taurus: ♉︎
Q / Gemini: ♊︎
R / Cancer: ♋︎
S / Leo: ♌︎
T / Virgo: ♍︎
U / Libra: ♎︎
V / Scorpio: ♏︎
W / Sagittarius: ♐︎
X / Capricorn: ♑︎
Y / Aquarius: ♒︎
Z / Pisces: ♓︎

[Source Code]

#include <windows.h>
#include <commdlg.h>

#define ID_FILE_SAVE 1001
#define ID_FILE_EXIT 1002
#define ID_FILE_OPEN 1003
#define ID_TOGGLE_SUBSTITUTION 1004

#pragma comment(lib, "user32.lib")
#pragma comment(lib, "gdi32.lib")
#pragma comment(lib, "comdlg32.lib")

#pragma comment(linker, "/SUBSYSTEM:WINDOWS /ENTRY:wWinMainCRTStartup")

const wchar_t CLASS_NAME[] = L"Correspondence";
const wchar_t WINDOW_TITLE[] = L"Correspondence";

HWND hEdit;
WNDPROC OldEditProc;
HFONT hFont;
OPENFILENAME ofn;
bool enableSubstitution = true;

void SaveFile(HWND hwnd) {
WCHAR szFileName[MAX_PATH] = L"";

ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;
ofn.lpstrFile = szFileName;
ofn.lpstrFile[0] = L'\0';
ofn.nMaxFile = sizeof(szFileName);
ofn.lpstrFilter = L"Text Files (*.txt)\0*.txt\0All Files (*.*)\0*.*\0";
ofn.nFilterIndex = 1;

if (GetSaveFileName(&ofn) == TRUE) {
HANDLE hFile = CreateFile(szFileName, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
MessageBox(hwnd, L"Failed to create file!", L"Error", MB_OK | MB_ICONERROR);
return;
}

int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

const WCHAR bom = 0xFEFF;
DWORD bytesWritten;
WriteFile(hFile, &bom, sizeof(WCHAR), &bytesWritten, NULL);

WriteFile(hFile, buffer, len * sizeof(WCHAR), &bytesWritten, NULL);

delete[] buffer;
}

CloseHandle(hFile);

MessageBox(hwnd, L"File saved successfully!", L"Correspondence", MB_OK | MB_ICONINFORMATION);
}
}

void OpenFile(HWND hwnd) {
WCHAR szFileName[MAX_PATH] = L"";

ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;
ofn.lpstrFile = szFileName;
ofn.lpstrFile[0] = L'\0';
ofn.nMaxFile = sizeof(szFileName);
ofn.lpstrFilter = L"Text Files (*.txt)\0*.txt\0All Files (*.*)\0*.*\0";
ofn.nFilterIndex = 1;

if (GetOpenFileName(&ofn) == TRUE) {
HANDLE hFile = CreateFile(szFileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
MessageBox(hwnd, L"Failed to open file!", L"Error", MB_OK | MB_ICONERROR);
return;
}

DWORD dwFileSize = GetFileSize(hFile, NULL);
if (dwFileSize == INVALID_FILE_SIZE) {
CloseHandle(hFile);
MessageBox(hwnd, L"Failed to get file size!", L"Error", MB_OK | MB_ICONERROR);
return;
}

WCHAR* buffer = new WCHAR[dwFileSize / sizeof(WCHAR) + 1];

DWORD bytesRead;
if (ReadFile(hFile, buffer, dwFileSize, &bytesRead, NULL)) {
if (bytesRead >= sizeof(WCHAR) && buffer[0] == 0xFEFF) {
memmove(buffer, buffer + 1, (bytesRead - sizeof(WCHAR)));
bytesRead -= sizeof(WCHAR);
}

buffer[bytesRead / sizeof(WCHAR)] = L'\0';

SetWindowText(hEdit, buffer);
}
else {
MessageBox(hwnd, L"Failed to read file!", L"Error", MB_OK | MB_ICONERROR);
}

delete[] buffer;
CloseHandle(hFile);
}
}

LRESULT CALLBACK EditSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
switch (uMsg) {
case WM_CHAR: {
if (enableSubstitution) {
switch (wParam) {
case 'A': case 'a': wParam = L'☉'; break;
case 'B': case 'b': wParam = L'●'; break;
case 'C': case 'c': wParam = L'☾'; break;
case 'D': case 'd': wParam = L'☽'; break;
case 'E': case 'e': wParam = L'○'; break;
case 'F': case 'f': wParam = L'☿'; break;
case 'G': case 'g': wParam = L'♀'; break;
case 'H': case 'h': wParam = L'♁'; break;
case 'I': case 'i': wParam = L'♂'; break;
case 'J': case 'j': wParam = L'♃'; break;
case 'K': case 'k': wParam = L'♄'; break;
case 'L': case 'l': wParam = L'♅'; break;
case 'M': case 'm': wParam = L'♆'; break;
case 'N': case 'n': wParam = L'♇'; break;
case 'O': case 'o': wParam = L'♈'; break;
case 'P': case 'p': wParam = L'♉'; break;
case 'Q': case 'q': wParam = L'♊'; break;
case 'R': case 'r': wParam = L'♋'; break;
case 'S': case 's': wParam = L'♌'; break;
case 'T': case 't': wParam = L'♍'; break;
case 'U': case 'u': wParam = L'♎'; break;
case 'V': case 'v': wParam = L'♏'; break;
case 'W': case 'w': wParam = L'♐'; break;
case 'X': case 'x': wParam = L'♑'; break;
case 'Y': case 'y': wParam = L'♒'; break;
case 'Z': case 'z': wParam = L'♓'; break;
}
}

break;
}
}
return CallWindowProc(OldEditProc, hwnd, uMsg, wParam, lParam);
}

LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
switch (uMsg) {
case WM_CREATE: {
hEdit = CreateWindowExW(
0, L"EDIT", L"",
WS_CHILD | WS_VISIBLE | WS_VSCROLL | WS_HSCROLL |
ES_LEFT | ES_MULTILINE | ES_AUTOVSCROLL | ES_AUTOHSCROLL,
0, 0, 0, 0,
hwnd, (HMENU)1, GetModuleHandle(NULL), NULL);
if (hEdit == NULL) {
MessageBox(hwnd, L"Could not create edit box.", L"Error", MB_OK | MB_ICONERROR);
return -1;
}

hFont = CreateFontW(
32, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE,
DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY,
DEFAULT_PITCH | FF_SWISS, L"Segoe UI Symbol");
SendMessage(hEdit, WM_SETFONT, (WPARAM)hFont, TRUE);

OldEditProc = (WNDPROC)SetWindowLongPtr(hEdit, GWLP_WNDPROC, (LONG_PTR)EditSubclassProc);
break;
}
case WM_SIZE: {
RECT rcClient;
GetClientRect(hwnd, &rcClient);
SetWindowPos(hEdit, NULL, 0, 0, rcClient.right, rcClient.bottom, SWP_NOZORDER);
break;
}
case WM_COMMAND: {
int wmId = LOWORD(wParam);
switch (wmId) {
case ID_FILE_SAVE:
SaveFile(hwnd);
break;
case ID_FILE_OPEN:
OpenFile(hwnd);
break;
case ID_TOGGLE_SUBSTITUTION:
enableSubstitution = !enableSubstitution;
if (enableSubstitution) {
MessageBox(hwnd, L"Code enabled.", L"Correspondence", MB_OK | MB_ICONINFORMATION);
}
else {
MessageBox(hwnd, L"Code disabled.", L"Correspondence", MB_OK | MB_ICONINFORMATION);
}
break;
case ID_FILE_EXIT:
DestroyWindow(hwnd);
break;
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
break;
}
case WM_DESTROY: {
if (hFont) {
DeleteObject(hFont);
}
PostQuitMessage(0);
break;
}
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
return 0;
}

int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PWSTR pCmdLine, int nCmdShow) {
WNDCLASS wc = {};
wc.lpfnWndProc = WindowProc;
wc.hInstance = hInstance;
wc.lpszClassName = CLASS_NAME;

RegisterClass(&wc);

HWND hwnd = CreateWindowExW(
0, CLASS_NAME, WINDOW_TITLE,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT, 800, 600,
NULL, NULL, hInstance, NULL);

if (hwnd == NULL) {
return 0;
}

HMENU hMenu = CreateMenu();
HMENU hSubMenu = CreatePopupMenu();
AppendMenu(hSubMenu, MF_STRING, ID_FILE_OPEN, L"&Open");
AppendMenu(hSubMenu, MF_STRING, ID_FILE_SAVE, L"&Save");
AppendMenu(hSubMenu, MF_SEPARATOR, 0, NULL);
AppendMenu(hSubMenu, MF_STRING, ID_TOGGLE_SUBSTITUTION, L"&Toggle Code");
AppendMenu(hSubMenu, MF_SEPARATOR, 0, NULL);
AppendMenu(hSubMenu, MF_STRING, ID_FILE_EXIT, L"E&xit");
AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenu, L"&File");
SetMenu(hwnd, hMenu);

ShowWindow(hwnd, nCmdShow);
UpdateWindow(hwnd);

MSG msg = {};
while (GetMessage(&msg, NULL, 0, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}

return msg.wParam;
}

[Corey White]

Update to the program at: https://github.com/alt-magick/Correspondence/
I've added the function to encode and decode entire files with a click.
You can still toggle between typing in code or in English.


#include <windows.h>
#include <commctrl.h>
#include <commdlg.h>
#include <string>

#define ID_FILE_SAVE 1001
#define ID_FILE_EXIT 1002
#define ID_FILE_OPEN 1003
#define ID_TOGGLE_SUBSTITUTION 1004
#define ID_CODE_ENCODE 1005
#define ID_CODE_DECODE 1006
#define ID_STATUSBAR 1007

#pragma comment(lib, "user32.lib")
#pragma comment(lib, "comctl32.lib")
#pragma comment(linker, "/SUBSYSTEM:WINDOWS /ENTRY:wWinMainCRTStartup")

const wchar_t CLASS_NAME[] = L"Correspondence";
const wchar_t WINDOW_TITLE[] = L"Correspondence";

HWND hEdit;
HWND hStatusBar;
WNDPROC OldEditProc;
HFONT hFont;
OPENFILENAME ofn;
bool enableSubstitution = true;

void SaveFile(HWND hwnd);
void OpenFile(HWND hwnd);
void EncodeText();
void DecodeText();

void UpdateStatusBar() {
int index = 0;
const int bufferSize = 256;
wchar_t statusText[bufferSize];
swprintf_s(statusText, bufferSize, L"Code %s", enableSubstitution ? L"Enabled" : L"Disabled");
SendMessage(hStatusBar, SB_SETTEXT, index, (LPARAM)statusText);
}

void SaveFile(HWND hwnd) {
WCHAR szFileName[MAX_PATH] = L"";

ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;
ofn.lpstrFile = szFileName;
ofn.lpstrFile[0] = L'\0';
ofn.nMaxFile = sizeof(szFileName);
ofn.lpstrFilter = L"Text Files (*.txt)\0*.txt\0All Files (*.*)\0*.*\0";
ofn.nFilterIndex = 1;

if (GetSaveFileName(&ofn) == TRUE) {
HANDLE hFile = CreateFile(szFileName, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
MessageBox(hwnd, L"Failed to create file!", L"Error", MB_OK | MB_ICONERROR);
return;
}

int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

const WCHAR bom = 0xFEFF;
DWORD bytesWritten;
WriteFile(hFile, &bom, sizeof(WCHAR), &bytesWritten, NULL);

WriteFile(hFile, buffer, len * sizeof(WCHAR), &bytesWritten, NULL);

delete[] buffer;
}

CloseHandle(hFile);

MessageBox(hwnd, L"File saved successfully!", L"Correspondence", MB_OK | MB_ICONINFORMATION);
}
}

void OpenFile(HWND hwnd) {
WCHAR szFileName[MAX_PATH] = L"";

ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;
ofn.lpstrFile = szFileName;
ofn.lpstrFile[0] = L'\0';
ofn.nMaxFile = sizeof(szFileName);
ofn.lpstrFilter = L"Text Files (*.txt)\0*.txt\0All Files (*.*)\0*.*\0";
ofn.nFilterIndex = 1;

if (GetOpenFileName(&ofn) == TRUE) {
HANDLE hFile = CreateFile(szFileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
MessageBox(hwnd, L"Failed to open file!", L"Error", MB_OK | MB_ICONERROR);
return;
}

DWORD dwFileSize = GetFileSize(hFile, NULL);
if (dwFileSize == INVALID_FILE_SIZE) {
CloseHandle(hFile);
MessageBox(hwnd, L"Failed to get file size!", L"Error", MB_OK | MB_ICONERROR);
return;
}

WCHAR* buffer = new WCHAR[dwFileSize / sizeof(WCHAR) + 1];

DWORD bytesRead;
if (ReadFile(hFile, buffer, dwFileSize, &bytesRead, NULL)) {
if (bytesRead >= sizeof(WCHAR) && buffer[0] == 0xFEFF) {
memmove(buffer, buffer + 1, (bytesRead - sizeof(WCHAR)));
bytesRead -= sizeof(WCHAR);
}

buffer[bytesRead / sizeof(WCHAR)] = L'\0';

SetWindowText(hEdit, buffer);
}
else {
MessageBox(hwnd, L"Failed to read file!", L"Error", MB_OK | MB_ICONERROR);
}

delete[] buffer;
CloseHandle(hFile);
}
}

void EncodeText() {
int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

for (int i = 0; i < len; ++i) {
WCHAR originalChar = buffer[i];
WCHAR newChar = originalChar; // Initialize with the original character

// Perform custom character substitution based on originalChar
switch (originalChar) {
case L'A': case L'a': newChar = L'☉'; break;
case L'B': case L'b': newChar = L'●'; break;
case L'C': case L'c': newChar = L'☾'; break;
case L'D': case L'd': newChar = L'☽'; break;
case L'E': case L'e': newChar = L'○'; break;
case L'F': case L'f': newChar = L'☿'; break;
case L'G': case L'g': newChar = L'♀'; break;
case L'H': case L'h': newChar = L'♁'; break;
case L'I': case L'i': newChar = L'♂'; break;
case L'J': case L'j': newChar = L'♃'; break;
case L'K': case L'k': newChar = L'♄'; break;
case L'L': case L'l': newChar = L'♅'; break;
case L'M': case L'm': newChar = L'♆'; break;
case L'N': case L'n': newChar = L'♇'; break;
case L'O': case L'o': newChar = L'♈'; break;
case L'P': case L'p': newChar = L'♉'; break;
case L'Q': case L'q': newChar = L'♊'; break;
case L'R': case L'r': newChar = L'♋'; break;
case L'S': case L's': newChar = L'♌'; break;
case L'T': case L't': newChar = L'♍'; break;
case L'U': case L'u': newChar = L'♎'; break;
case L'V': case L'v': newChar = L'♏'; break;
case L'W': case L'w': newChar = L'♐'; break;
case L'X': case L'x': newChar = L'♑'; break;
case L'Y': case L'y': newChar = L'♒'; break;
case L'Z': case L'z': newChar = L'♓'; break;
default: // If no substitution, keep the original character
newChar = originalChar;
break;
}

buffer[i] = newChar; // Replace the character in the buffer
}

SetWindowText(hEdit, buffer);
delete[] buffer;
}

UpdateStatusBar();
}

void DecodeText() {
int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

for (int i = 0; i < len; ++i) {
WCHAR originalChar = buffer[i];
WCHAR newChar = originalChar; // Initialize with the original character

// Perform custom character substitution based on originalChar
switch (originalChar) {
case L'☉': newChar = L'a'; break;
case L'●': newChar = L'b'; break;
case L'☾': newChar = L'c'; break;
case L'☽': newChar = L'd'; break;
case L'○': newChar = L'e'; break;
case L'☿': newChar = L'f'; break;
case L'♀': newChar = L'g'; break;
case L'♁': newChar = L'h'; break;
case L'♂': newChar = L'i'; break;
case L'♃': newChar = L'j'; break;
case L'♄': newChar = L'k'; break;
case L'♅': newChar = L'l'; break;
case L'♆': newChar = L'm'; break;
case L'♇': newChar = L'n'; break;
case L'♈': newChar = L'o'; break;
case L'♉': newChar = L'p'; break;
case L'♊': newChar = L'q'; break;
case L'♋': newChar = L'r'; break;
case L'♌': newChar = L's'; break;
case L'♍': newChar = L't'; break;
case L'♎': newChar = L'u'; break;
case L'♏': newChar = L'v'; break;
case L'♐': newChar = L'w'; break;
case L'♑': newChar = L'x'; break;
case L'♒': newChar = L'y'; break;
case L'♓': newChar = L'z'; break;
default: // If no substitution, keep the original character
newChar = originalChar;
break;
}

buffer[i] = newChar; // Replace the character in the buffer
}

SetWindowText(hEdit, buffer);
delete[] buffer;
}

UpdateStatusBar();
}

LRESULT CALLBACK EditSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
switch (uMsg) {
case WM_CHAR: {
if (enableSubstitution) {
switch (wParam) {
case 'A': case 'a': wParam = L'☉'; break;
case 'B': case 'b': wParam = L'●'; break;
case 'C': case 'c': wParam = L'☾'; break;
case 'D': case 'd': wParam = L'☽'; break;
case 'E': case 'e': wParam = L'○'; break;
case 'F': case 'f': wParam = L'☿'; break;
case 'G': case 'g': wParam = L'♀'; break;
case 'H': case 'h': wParam = L'♁'; break;
case 'I': case 'i': wParam = L'♂'; break;
case 'J': case 'j': wParam = L'♃'; break;
case 'K': case 'k': wParam = L'♄'; break;
case 'L': case 'l': wParam = L'♅'; break;
case 'M': case 'm': wParam = L'♆'; break;
case 'N': case 'n': wParam = L'♇'; break;
case 'O': case 'o': wParam = L'♈'; break;
case 'P': case 'p': wParam = L'♉'; break;
case 'Q': case 'q': wParam = L'♊'; break;
case 'R': case 'r': wParam = L'♋'; break;
case 'S': case 's': wParam = L'♌'; break;
case 'T': case 't': wParam = L'♍'; break;
case 'U': case 'u': wParam = L'♎'; break;
case 'V': case 'v': wParam = L'♏'; break;
case 'W': case 'w': wParam = L'♐'; break;
case 'X': case 'x': wParam = L'♑'; break;
case 'Y': case 'y': wParam = L'♒'; break;
case 'Z': case 'z': wParam = L'♓'; break;
}
}

break;
}
}
return CallWindowProc(OldEditProc, hwnd, uMsg, wParam, lParam);
}


LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
switch (uMsg) {
case WM_CREATE: {
hEdit = CreateWindowExW(
0, L"EDIT", L"",
WS_CHILD | WS_VISIBLE | WS_VSCROLL | WS_HSCROLL |
ES_LEFT | ES_MULTILINE | ES_AUTOVSCROLL | ES_AUTOHSCROLL,
0, 0, 0, 0,
hwnd, (HMENU)1, GetModuleHandle(NULL), NULL);
if (hEdit == NULL) {
MessageBox(hwnd, L"Could not create edit box.", L"Error", MB_OK | MB_ICONERROR);
return -1;
}

hFont = CreateFontW(
32, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE,
DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY,
DEFAULT_PITCH | FF_SWISS, L"Segoe UI Symbol");
SendMessage(hEdit, WM_SETFONT, (WPARAM)hFont, TRUE);

OldEditProc = (WNDPROC)SetWindowLongPtr(hEdit, GWLP_WNDPROC, (LONG_PTR)EditSubclassProc);

// Create status bar
hStatusBar = CreateWindowExW(
0, STATUSCLASSNAME, NULL,
WS_CHILD | WS_VISIBLE | SBARS_SIZEGRIP,
0, 0, 0, 0,
hwnd, (HMENU)ID_STATUSBAR, GetModuleHandle(NULL), NULL);

// Set up the parts of the status bar
int statusParts[] = { 200, -1 }; // 200 for the status text, -1 for sizing grip
SendMessage(hStatusBar, SB_SETPARTS, sizeof(statusParts) / sizeof(int), (LPARAM)&statusParts);

UpdateStatusBar(); // Initialize status bar text
break;
}
case WM_SIZE: {
RECT rcClient;
GetClientRect(hwnd, &rcClient);
SetWindowPos(hEdit, NULL, 0, 0, rcClient.right, rcClient.bottom - 20, SWP_NOZORDER); // Adjust size for status bar
SetWindowPos(hStatusBar, NULL, 0, rcClient.bottom - 20, rcClient.right, 20, SWP_NOZORDER); // Position status bar
break;
}
case WM_COMMAND: {
int wmId = LOWORD(wParam);
switch (wmId) {
case ID_FILE_SAVE:
SaveFile(hwnd);
break;
case ID_FILE_OPEN:
OpenFile(hwnd);
break;
case ID_TOGGLE_SUBSTITUTION:
enableSubstitution = !enableSubstitution;
UpdateStatusBar(); // Update status bar text
break;
case ID_CODE_ENCODE:
EncodeText();
break;
case ID_CODE_DECODE:
DecodeText();
break;
case ID_FILE_EXIT:
DestroyWindow(hwnd);
break;
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
break;
}
case WM_DESTROY: {
if (hFont) {
DeleteObject(hFont);
}
PostQuitMessage(0);
break;
}
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
return 0;
}

int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PWSTR pCmdLine, int nCmdShow) {
INITCOMMONCONTROLSEX iccex;
iccex.dwSize = sizeof(iccex);
iccex.dwICC = ICC_WIN95_CLASSES; // or ICC_STANDARD_CLASSES
InitCommonControlsEx(&iccex);

WNDCLASS wc = {};
wc.lpfnWndProc = WindowProc;
wc.hInstance = hInstance;
wc.lpszClassName = CLASS_NAME;

RegisterClass(&wc);

HWND hwnd = CreateWindowExW(
0, CLASS_NAME, WINDOW_TITLE,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT, 800, 600,
NULL, NULL, hInstance, NULL);

if (hwnd == NULL) {
return 0;
}

HMENU hMenu = CreateMenu();
HMENU hSubMenuFile = CreatePopupMenu();
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_OPEN, L"&Open");
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_SAVE, L"&Save");
AppendMenu(hSubMenuFile, MF_SEPARATOR, 0, NULL);
AppendMenu(hSubMenuFile, MF_STRING, ID_TOGGLE_SUBSTITUTION, L"&Toggle Code");
AppendMenu(hSubMenuFile, MF_SEPARATOR, 0, NULL);
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_EXIT, L"E&xit");

HMENU hSubMenuCode = CreatePopupMenu();
AppendMenu(hSubMenuCode, MF_STRING, ID_CODE_ENCODE, L"&Encode");
AppendMenu(hSubMenuCode, MF_STRING, ID_CODE_DECODE, L"&Decode");

AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenuFile, L"&File");
AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenuCode, L"&Code");

SetMenu(hwnd, hMenu);

ShowWindow(hwnd, nCmdShow);
UpdateWindow(hwnd);

MSG msg = {};
while (GetMessage(&msg, NULL, 0, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}

return msg.wParam;
}

[Corey White]

Post by Corey White
Update to the program at: https://github.com/alt-magick/Correspondence/
I've added the function to encode and decode entire files with a click.
You can still toggle between typing in code or in English.

The code continues to be at: https://github.com/alt-magick/Correspondence/

I've added additional functionality and minor fixes to the user interface.
You can now encode and decode text you select with the mouse, as well as
toggle between writing in code or in English. I've added Ctrl key shortcuts
for everything too:

#include <windows.h>
#include <commctrl.h>
#include <commdlg.h>
#include <string>

#define ID_FILE_SAVE 1001
#define ID_FILE_EXIT 1002
#define ID_FILE_OPEN 1003
#define ID_TOGGLE_SUBSTITUTION 1004
#define ID_CODE_ENCODE 1005
#define ID_CODE_DECODE 1006
#define ID_STATUSBAR 1007
#define ID_EDIT_CUT 1008
#define ID_EDIT_COPY 1009
#define ID_EDIT_PASTE 1010
#define ID_CTRL_E_ENCODE 1011
#define ID_CTRL_D_DECODE 1012
#define ID_CTRL_X_CUT 1013
#define ID_CTRL_C_COPY 1014
#define ID_CTRL_V_PASTE 1015
#define ID_CTRL_T 1016
#define ID_CTRL_S 1016
#define ID_CTRL_O 1016
#define ID_CTRL_Q 1016

#pragma comment(lib, "user32.lib")
#pragma comment(lib, "comctl32.lib")
#pragma comment(linker, "/SUBSYSTEM:WINDOWS /ENTRY:wWinMainCRTStartup")

const wchar_t CLASS_NAME[] = L"Correspondence";
const wchar_t WINDOW_TITLE[] = L"Correspondence";

HWND hEdit;
HWND hStatusBar;
WNDPROC OldEditProc;
HFONT hFont;
OPENFILENAME ofn;
bool enableSubstitution = false;

void SaveFile(HWND hwnd);
void OpenFile(HWND hwnd);
void EncodeText();
void DecodeText();

void UpdateStatusBar() {
int index = 0;
const int bufferSize = 256;
wchar_t statusText[bufferSize];
swprintf_s(statusText, bufferSize, L"Code %s", enableSubstitution ? L"Enabled" : L"Disabled");
SendMessage(hStatusBar, SB_SETTEXT, index, (LPARAM)statusText);
}

void SaveFile(HWND hwnd) {
WCHAR szFileName[MAX_PATH] = L"";

ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;
ofn.lpstrFile = szFileName;
ofn.lpstrFile[0] = L'\0';
ofn.nMaxFile = sizeof(szFileName);
ofn.lpstrFilter = L"Text Files (*.txt)\0*.txt\0All Files (*.*)\0*.*\0";
ofn.nFilterIndex = 1;

if (GetSaveFileName(&ofn) == TRUE) {
HANDLE hFile = CreateFile(szFileName, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
MessageBox(hwnd, L"Failed to create file!", L"Error", MB_OK | MB_ICONERROR);
return;
}

int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

const WCHAR bom = 0xFEFF;
DWORD bytesWritten;
WriteFile(hFile, &bom, sizeof(WCHAR), &bytesWritten, NULL);

WriteFile(hFile, buffer, len * sizeof(WCHAR), &bytesWritten, NULL);

delete[] buffer;
}

CloseHandle(hFile);

MessageBox(hwnd, L"File saved successfully!", L"Correspondence", MB_OK | MB_ICONINFORMATION);
}
}

void OpenFile(HWND hwnd) {
WCHAR szFileName[MAX_PATH] = L"";

ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;
ofn.lpstrFile = szFileName;
ofn.lpstrFile[0] = L'\0';
ofn.nMaxFile = sizeof(szFileName);
ofn.lpstrFilter = L"Text Files (*.txt)\0*.txt\0All Files (*.*)\0*.*\0";
ofn.nFilterIndex = 1;

if (GetOpenFileName(&ofn) == TRUE) {
HANDLE hFile = CreateFile(szFileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
MessageBox(hwnd, L"Failed to open file!", L"Error", MB_OK | MB_ICONERROR);
return;
}

DWORD dwFileSize = GetFileSize(hFile, NULL);
if (dwFileSize == INVALID_FILE_SIZE) {
CloseHandle(hFile);
MessageBox(hwnd, L"Failed to get file size!", L"Error", MB_OK | MB_ICONERROR);
return;
}

WCHAR* buffer = new WCHAR[dwFileSize / sizeof(WCHAR) + 1];

DWORD bytesRead;
if (ReadFile(hFile, buffer, dwFileSize, &bytesRead, NULL)) {
if (bytesRead >= sizeof(WCHAR) && buffer[0] == 0xFEFF) {
memmove(buffer, buffer + 1, (bytesRead - sizeof(WCHAR)));
bytesRead -= sizeof(WCHAR);
}

buffer[bytesRead / sizeof(WCHAR)] = L'\0';

SetWindowText(hEdit, buffer);
}
else {
MessageBox(hwnd, L"Failed to read file!", L"Error", MB_OK | MB_ICONERROR);
}

delete[] buffer;
CloseHandle(hFile);
}
}

void EncodeText() {
int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

for (int i = 0; i < len; ++i) {
WCHAR originalChar = buffer[i];
WCHAR newChar = originalChar;

switch (originalChar) {
case L'A': case L'a': newChar = L'☉'; break;
case L'B': case L'b': newChar = L'●'; break;
case L'C': case L'c': newChar = L'☾'; break;
case L'D': case L'd': newChar = L'☽'; break;
case L'E': case L'e': newChar = L'○'; break;
case L'F': case L'f': newChar = L'☿'; break;
case L'G': case L'g': newChar = L'♀'; break;
case L'H': case L'h': newChar = L'♁'; break;
case L'I': case L'i': newChar = L'♂'; break;
case L'J': case L'j': newChar = L'♃'; break;
case L'K': case L'k': newChar = L'♄'; break;
case L'L': case L'l': newChar = L'♅'; break;
case L'M': case L'm': newChar = L'♆'; break;
case L'N': case L'n': newChar = L'♇'; break;
case L'O': case L'o': newChar = L'♈'; break;
case L'P': case L'p': newChar = L'♉'; break;
case L'Q': case L'q': newChar = L'♊'; break;
case L'R': case L'r': newChar = L'♋'; break;
case L'S': case L's': newChar = L'♌'; break;
case L'T': case L't': newChar = L'♍'; break;
case L'U': case L'u': newChar = L'♎'; break;
case L'V': case L'v': newChar = L'♏'; break;
case L'W': case L'w': newChar = L'♐'; break;
case L'X': case L'x': newChar = L'♑'; break;
case L'Y': case L'y': newChar = L'♒'; break;
case L'Z': case L'z': newChar = L'♓'; break;
default:
newChar = originalChar;
break;
}

buffer[i] = newChar;
}

SetWindowText(hEdit, buffer);
delete[] buffer;
}

UpdateStatusBar();
}

void DecodeText() {
int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

for (int i = 0; i < len; ++i) {
WCHAR originalChar = buffer[i];
WCHAR newChar = originalChar;

switch (originalChar) {
case L'☉': newChar = L'a'; break;
case L'●': newChar = L'b'; break;
case L'☾': newChar = L'c'; break;
case L'☽': newChar = L'd'; break;
case L'○': newChar = L'e'; break;
case L'☿': newChar = L'f'; break;
case L'♀': newChar = L'g'; break;
case L'♁': newChar = L'h'; break;
case L'♂': newChar = L'i'; break;
case L'♃': newChar = L'j'; break;
case L'♄': newChar = L'k'; break;
case L'♅': newChar = L'l'; break;
case L'♆': newChar = L'm'; break;
case L'♇': newChar = L'n'; break;
case L'♈': newChar = L'o'; break;
case L'♉': newChar = L'p'; break;
case L'♊': newChar = L'q'; break;
case L'♋': newChar = L'r'; break;
case L'♌': newChar = L's'; break;
case L'♍': newChar = L't'; break;
case L'♎': newChar = L'u'; break;
case L'♏': newChar = L'v'; break;
case L'♐': newChar = L'w'; break;
case L'♑': newChar = L'x'; break;
case L'♒': newChar = L'y'; break;
case L'♓': newChar = L'z'; break;
default:
newChar = originalChar;
break;
}

buffer[i] = newChar;
}

SetWindowText(hEdit, buffer);
delete[] buffer;
}

UpdateStatusBar();
}

LRESULT CALLBACK EditSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
switch (uMsg) {
case WM_CHAR: {
if (enableSubstitution) {
switch (wParam) {
case 'A': case 'a': wParam = L'☉'; break;
case 'B': case 'b': wParam = L'●'; break;
case 'C': case 'c': wParam = L'☾'; break;
case 'D': case 'd': wParam = L'☽'; break;
case 'E': case 'e': wParam = L'○'; break;
case 'F': case 'f': wParam = L'☿'; break;
case 'G': case 'g': wParam = L'♀'; break;
case 'H': case 'h': wParam = L'♁'; break;
case 'I': case 'i': wParam = L'♂'; break;
case 'J': case 'j': wParam = L'♃'; break;
case 'K': case 'k': wParam = L'♄'; break;
case 'L': case 'l': wParam = L'♅'; break;
case 'M': case 'm': wParam = L'♆'; break;
case 'N': case 'n': wParam = L'♇'; break;
case 'O': case 'o': wParam = L'♈'; break;
case 'P': case 'p': wParam = L'♉'; break;
case 'Q': case 'q': wParam = L'♊'; break;
case 'R': case 'r': wParam = L'♋'; break;
case 'S': case 's': wParam = L'♌'; break;
case 'T': case 't': wParam = L'♍'; break;
case 'U': case 'u': wParam = L'♎'; break;
case 'V': case 'v': wParam = L'♏'; break;
case 'W': case 'w': wParam = L'♐'; break;
case 'X': case 'x': wParam = L'♑'; break;
case 'Y': case 'y': wParam = L'♒'; break;
case 'Z': case 'z': wParam = L'♓'; break;
}
}

break;
}
case WM_KEYDOWN: {
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'E') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_E_ENCODE, 0), (LPARAM)hwnd);
return 0;
}

if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'D') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_D_DECODE, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'X') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_X_CUT, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'C') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_C_COPY, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'V') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_V_PASTE, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'T') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_T, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'S') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_FILE_SAVE, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'O') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_FILE_OPEN, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'Q') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_FILE_EXIT, 0), (LPARAM)hwnd);
return 0;
}
break;
}
}
return CallWindowProc(OldEditProc, hwnd, uMsg, wParam, lParam);
}


LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
switch (uMsg) {
case WM_CREATE: {
hEdit = CreateWindowExW(
0, L"EDIT", L"",
WS_CHILD | WS_VISIBLE | WS_VSCROLL | WS_HSCROLL |
ES_LEFT | ES_MULTILINE | ES_AUTOVSCROLL | ES_AUTOHSCROLL,
0, 0, 0, 0,
hwnd, (HMENU)1, GetModuleHandle(NULL), NULL);
if (hEdit == NULL) {
MessageBox(hwnd, L"Could not create edit box.", L"Error", MB_OK | MB_ICONERROR);
return -1;
}

hFont = CreateFontW(
32, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE,
DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY,
DEFAULT_PITCH | FF_SWISS, L"Segoe UI Symbol");
SendMessage(hEdit, WM_SETFONT, (WPARAM)hFont, TRUE);

OldEditProc = (WNDPROC)SetWindowLongPtr(hEdit, GWLP_WNDPROC, (LONG_PTR)EditSubclassProc);

hStatusBar = CreateWindowExW(
0, STATUSCLASSNAME, NULL,
WS_CHILD | WS_VISIBLE | SBARS_SIZEGRIP,
0, 0, 0, 0,
hwnd, (HMENU)ID_STATUSBAR, GetModuleHandle(NULL), NULL);

int statusParts[] = { 200, -1 };
SendMessage(hStatusBar, SB_SETPARTS, sizeof(statusParts) / sizeof(int), (LPARAM)&statusParts);

UpdateStatusBar();
break;
}
case WM_SIZE: {
RECT rcClient;
GetClientRect(hwnd, &rcClient);
SetWindowPos(hEdit, NULL, 0, 0, rcClient.right, rcClient.bottom - 20, SWP_NOZORDER);
SetWindowPos(hStatusBar, NULL, 0, rcClient.bottom - 20, rcClient.right, 20, SWP_NOZORDER);
break;
}
case WM_COMMAND: {
int wmId = LOWORD(wParam);
switch (wmId) {
case ID_FILE_SAVE:
SaveFile(hwnd);
break;
case ID_FILE_OPEN:
OpenFile(hwnd);
break;
case ID_TOGGLE_SUBSTITUTION:
enableSubstitution = !enableSubstitution;
UpdateStatusBar();
break;
case ID_CODE_ENCODE:
SendMessage(hEdit, WM_CUT, 0, 0);
if (OpenClipboard(hwnd)) {
HANDLE hClipboardData = GetClipboardData(CF_UNICODETEXT);
if (hClipboardData != NULL) {
WCHAR* pszData = static_cast<WCHAR*>(GlobalLock(hClipboardData));
if (pszData != NULL) {

size_t length = wcslen(pszData);
WCHAR* pszModifiedData = new WCHAR[length + 1];
if (pszModifiedData != NULL) {
for (size_t i = 0; i < length; ++i) {
if (pszData[i] == L'a' || pszData[i] == L'A') {
pszModifiedData[i] = L'☉';
}
else if (pszData[i] == L'b' || pszData[i] == L'B') {
pszModifiedData[i] = L'●';
}
else if (pszData[i] == L'c' || pszData[i] == L'C') {
pszModifiedData[i] = L'☾';
}
else if (pszData[i] == L'd' || pszData[i] == L'D') {
pszModifiedData[i] = L'☽';
}
else if (pszData[i] == L'e' || pszData[i] == L'E') {
pszModifiedData[i] = L'○';
}
else if (pszData[i] == L'f' || pszData[i] == L'F') {
pszModifiedData[i] = L'☿';
}
else if (pszData[i] == L'g' || pszData[i] == L'G') {
pszModifiedData[i] = L'♀';
}
else if (pszData[i] == L'h' || pszData[i] == L'H') {
pszModifiedData[i] = L'♁';
}
else if (pszData[i] == L'i' || pszData[i] == L'I') {
pszModifiedData[i] = L'♂';
}
else if (pszData[i] == L'j' || pszData[i] == L'J') {
pszModifiedData[i] = L'♃';
}
else if (pszData[i] == L'k' || pszData[i] == L'K') {
pszModifiedData[i] = L'♄';
}
else if (pszData[i] == L'l' || pszData[i] == L'L') {
pszModifiedData[i] = L'♅';
}
else if (pszData[i] == L'm' || pszData[i] == L'M') {
pszModifiedData[i] = L'♆';
}
else if (pszData[i] == L'n' || pszData[i] == L'N') {
pszModifiedData[i] = L'♇';
}
else if (pszData[i] == L'o' || pszData[i] == L'O') {
pszModifiedData[i] = L'♈';
}
else if (pszData[i] == L'p' || pszData[i] == L'P') {
pszModifiedData[i] = L'♉';
}
else if (pszData[i] == L'q' || pszData[i] == L'Q') {
pszModifiedData[i] = L'♊';
}
else if (pszData[i] == L'r' || pszData[i] == L'R') {
pszModifiedData[i] = L'♋';
}
else if (pszData[i] == L's' || pszData[i] == L'S') {
pszModifiedData[i] = L'♌';
}
else if (pszData[i] == L't' || pszData[i] == L'T') {
pszModifiedData[i] = L'♍';
}
else if (pszData[i] == L'u' || pszData[i] == L'U') {
pszModifiedData[i] = L'♎';
}
else if (pszData[i] == L'v' || pszData[i] == L'V') {
pszModifiedData[i] = L'♏';
}
else if (pszData[i] == L'w' || pszData[i] == L'W') {
pszModifiedData[i] = L'♐';
}
else if (pszData[i] == L'x' || pszData[i] == L'X') {
pszModifiedData[i] = L'♑';
}
else if (pszData[i] == L'y' || pszData[i] == L'Y') {
pszModifiedData[i] = L'♒';
}
else if (pszData[i] == L'z' || pszData[i] == L'Z') {
pszModifiedData[i] = L'♓';
}
else {
pszModifiedData[i] = pszData[i];
}
}
pszModifiedData[length] = L'\0';


EmptyClipboard();


HANDLE hNewData = GlobalAlloc(GMEM_MOVEABLE, (length + 1) * sizeof(WCHAR));
if (hNewData != NULL) {
WCHAR* pszNewData = static_cast<WCHAR*>(GlobalLock(hNewData));
if (pszNewData != NULL) {
wcscpy_s(pszNewData, length + 1, pszModifiedData);
GlobalUnlock(hNewData);


SetClipboardData(CF_UNICODETEXT, hNewData);
}
else {
GlobalFree(hNewData);
}
}

delete[] pszModifiedData;
}
GlobalUnlock(hClipboardData);
}
}

CloseClipboard();
}
SendMessage(hEdit, WM_PASTE, 0, 0);
break;

case ID_CODE_DECODE:
SendMessage(hEdit, WM_CUT, 0, 0);
if (OpenClipboard(hwnd)) {
HANDLE hClipboardData = GetClipboardData(CF_UNICODETEXT);
if (hClipboardData != NULL) {
WCHAR* pszData = static_cast<WCHAR*>(GlobalLock(hClipboardData));
if (pszData != NULL) {

size_t length = wcslen(pszData);
WCHAR* pszModifiedData = new WCHAR[length + 1];
if (pszModifiedData != NULL) {
for (size_t i = 0; i < length; ++i) {
if (pszData[i] == L'☉') {
pszModifiedData[i] = L'a';
}
else if (pszData[i] == L'●') {
pszModifiedData[i] = L'b';
}
else if (pszData[i] == L'☾') {
pszModifiedData[i] = L'c';
}
else if (pszData[i] == L'☽') {
pszModifiedData[i] = L'd';
}
else if (pszData[i] == L'○') {
pszModifiedData[i] = L'e';
}
else if (pszData[i] == L'☿') {
pszModifiedData[i] = L'f';
}
else if (pszData[i] == L'♀') {
pszModifiedData[i] = L'g';
}
else if (pszData[i] == L'♁') {
pszModifiedData[i] = L'h';
}
else if (pszData[i] == L'♂') {
pszModifiedData[i] = L'i';
}
else if (pszData[i] == L'♃') {
pszModifiedData[i] = L'j';
}
else if (pszData[i] == L'♄') {
pszModifiedData[i] = L'k';
}
else if (pszData[i] == L'♅') {
pszModifiedData[i] = L'l';
}
else if (pszData[i] == L'♆') {
pszModifiedData[i] = L'm';
}
else if (pszData[i] == L'♇') {
pszModifiedData[i] = L'n';
}
else if (pszData[i] == L'♈') {
pszModifiedData[i] = L'o';
}
else if (pszData[i] == L'♉') {
pszModifiedData[i] = L'p';
}
else if (pszData[i] == L'♊') {
pszModifiedData[i] = L'q';
}
else if (pszData[i] == L'♋') {
pszModifiedData[i] = L'r';
}
else if (pszData[i] == L'♌') {
pszModifiedData[i] = L's';
}
else if (pszData[i] == L'♍') {
pszModifiedData[i] = L't';
}
else if (pszData[i] == L'♎') {
pszModifiedData[i] = L'u';
}
else if (pszData[i] == L'♏') {
pszModifiedData[i] = L'v';
}
else if (pszData[i] == L'♐') {
pszModifiedData[i] = L'w';
}
else if (pszData[i] == L'♑') {
pszModifiedData[i] = L'x';
}
else if (pszData[i] == L'♒') {
pszModifiedData[i] = L'y';
}
else if (pszData[i] == L'♓') {
pszModifiedData[i] = L'z';
}

else {
pszModifiedData[i] = pszData[i];
}
}
pszModifiedData[length] = L'\0';

EmptyClipboard();

HANDLE hNewData = GlobalAlloc(GMEM_MOVEABLE, (length + 1) * sizeof(WCHAR));
if (hNewData != NULL) {
WCHAR* pszNewData = static_cast<WCHAR*>(GlobalLock(hNewData));
if (pszNewData != NULL) {
wcscpy_s(pszNewData, length + 1, pszModifiedData);
GlobalUnlock(hNewData);


SetClipboardData(CF_UNICODETEXT, hNewData);
}
else {
GlobalFree(hNewData);
}
}

delete[] pszModifiedData;
}
GlobalUnlock(hClipboardData);
}
}

CloseClipboard();
}
SendMessage(hEdit, WM_PASTE, 0, 0);
break;

case ID_CTRL_X_CUT: {
SendMessage(hwnd, WM_COMMAND, MAKEWPARAM(ID_EDIT_CUT, 0), 0);
break;
}
case ID_CTRL_C_COPY: {
SendMessage(hwnd, WM_COMMAND, MAKEWPARAM(ID_EDIT_COPY, 0), 0);
break;
}
case ID_CTRL_V_PASTE: {
SendMessage(hwnd, WM_COMMAND, MAKEWPARAM(ID_EDIT_PASTE, 0), 0);
break;
}
case ID_EDIT_CUT: {
SendMessage(hEdit, WM_CUT, 0, 0);
break;
}
case ID_EDIT_COPY: {
SendMessage(hEdit, WM_COPY, 0, 0);
break;
}
case ID_EDIT_PASTE: {
SendMessage(hEdit, WM_PASTE, 0, 0);
break;
}
case ID_CTRL_D_DECODE: {
SendMessage(hwnd, WM_COMMAND, MAKEWPARAM(ID_CODE_DECODE, 0), 0);
break;
}
case ID_CTRL_E_ENCODE: {
SendMessage(hwnd, WM_COMMAND, MAKEWPARAM(ID_CODE_ENCODE, 0), 0);
break;
}
case ID_CTRL_T: {
enableSubstitution = !enableSubstitution;
UpdateStatusBar();
break;
}

case ID_FILE_EXIT:
DestroyWindow(hwnd);
break;
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
break;
}
case WM_DESTROY: {
if (hFont) {
DeleteObject(hFont);
}
PostQuitMessage(0);
break;
}
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
return 0;
}

int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PWSTR pCmdLine, int nCmdShow) {
INITCOMMONCONTROLSEX iccex;
iccex.dwSize = sizeof(iccex);
iccex.dwICC = ICC_WIN95_CLASSES;
InitCommonControlsEx(&iccex);

WNDCLASS wc = {};
wc.lpfnWndProc = WindowProc;
wc.hInstance = hInstance;
wc.lpszClassName = CLASS_NAME;

RegisterClass(&wc);

HWND hwnd = CreateWindowExW(
0, CLASS_NAME, WINDOW_TITLE,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT, 800, 600,
NULL, NULL, hInstance, NULL);

if (hwnd == NULL) {
return 0;
}

HMENU hMenu = CreateMenu();
HMENU hSubMenuFile = CreatePopupMenu();
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_OPEN, L"&Open - Ctrl + O");
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_SAVE, L"&Save - Ctrl + S");
AppendMenu(hSubMenuFile, MF_SEPARATOR, 0, NULL);
AppendMenu(hSubMenuFile, MF_SEPARATOR, 0, NULL);
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_EXIT, L"E&xit - Ctrl + Q");

HMENU hSubMenuCode = CreatePopupMenu();
AppendMenu(hSubMenuCode, MF_STRING, ID_CODE_ENCODE, L"&Encode - Ctrl + E");
AppendMenu(hSubMenuCode, MF_STRING, ID_CODE_DECODE, L"&Decode - Ctrl + D");
AppendMenu(hSubMenuCode, MF_STRING, ID_TOGGLE_SUBSTITUTION, L"&Toggle - Ctrl + T");

HMENU hSubMenuEdit = CreatePopupMenu();
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_CUT, L"&Cut - Ctrl + X");
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_COPY, L"&Copy - Ctrl + C");
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_PASTE, L"&Paste - Ctrl + V");

AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenuFile, L"&File");
AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenuEdit, L"&Edit");
AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenuCode, L"&Code");


SetMenu(hwnd, hMenu);

ShowWindow(hwnd, nCmdShow);
UpdateWindow(hwnd);

MSG msg = {};
while (GetMessage(&msg, NULL, 0, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}

return msg.wParam;
}

[Corey White]

The code continues to be at: https://github.com/alt-magick/Correspondence/

#include <windows.h>
#include <commctrl.h>
#include <commdlg.h>
#include <string>

#define ID_FILE_SAVE 1001
#define ID_FILE_EXIT 1002
#define ID_FILE_OPEN 1003
#define ID_TOGGLE_SUBSTITUTION 1004
#define ID_CODE_ENCODE 1005
#define ID_CODE_DECODE 1006
#define ID_STATUSBAR 1007
#define ID_EDIT_CUT 1008
#define ID_EDIT_COPY 1009
#define ID_EDIT_PASTE 1010
#define ID_CTRL_E_ENCODE 1011
#define ID_CTRL_D_DECODE 1012
#define ID_CTRL_T 1016
#define ID_CTRL_S 1016
#define ID_CTRL_O 1016
#define ID_CTRL_Q 1016

#pragma comment(lib, "user32.lib")
#pragma comment(lib, "comctl32.lib")
#pragma comment(linker, "/SUBSYSTEM:WINDOWS /ENTRY:wWinMainCRTStartup")

const wchar_t CLASS_NAME[] = L"Correspondence";
const wchar_t WINDOW_TITLE[] = L"Correspondence";

HWND hEdit;
HWND hStatusBar;
WNDPROC OldEditProc;
HFONT hFont;
OPENFILENAME ofn;
bool enableSubstitution = false;

void SaveFile(HWND hwnd);
void OpenFile(HWND hwnd);
void EncodeText();
void DecodeText();

void UpdateStatusBar() {
int index = 0;
const int bufferSize = 256;
wchar_t statusText[bufferSize];
swprintf_s(statusText, bufferSize, L"Code %s", enableSubstitution ? L"Enabled" : L"Disabled");
SendMessage(hStatusBar, SB_SETTEXT, index, (LPARAM)statusText);
}

void SaveFile(HWND hwnd) {
WCHAR szFileName[MAX_PATH] = L"";

ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;
ofn.lpstrFile = szFileName;
ofn.lpstrFile[0] = L'\0';
ofn.nMaxFile = sizeof(szFileName);
ofn.lpstrFilter = L"Text Files (*.txt)\0*.txt\0All Files (*.*)\0*.*\0";
ofn.nFilterIndex = 1;

if (GetSaveFileName(&ofn) == TRUE) {
HANDLE hFile = CreateFile(szFileName, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
MessageBox(hwnd, L"Failed to create file!", L"Error", MB_OK | MB_ICONERROR);
return;
}

int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

const WCHAR bom = 0xFEFF;
DWORD bytesWritten;
WriteFile(hFile, &bom, sizeof(WCHAR), &bytesWritten, NULL);

WriteFile(hFile, buffer, len * sizeof(WCHAR), &bytesWritten, NULL);

delete[] buffer;
}

CloseHandle(hFile);

MessageBox(hwnd, L"File saved successfully!", L"Correspondence", MB_OK | MB_ICONINFORMATION);
}
}

void OpenFile(HWND hwnd) {
WCHAR szFileName[MAX_PATH] = L"";

ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;
ofn.lpstrFile = szFileName;
ofn.lpstrFile[0] = L'\0';
ofn.nMaxFile = sizeof(szFileName);
ofn.lpstrFilter = L"Text Files (*.txt)\0*.txt\0All Files (*.*)\0*.*\0";
ofn.nFilterIndex = 1;

if (GetOpenFileName(&ofn) == TRUE) {
HANDLE hFile = CreateFile(szFileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
MessageBox(hwnd, L"Failed to open file!", L"Error", MB_OK | MB_ICONERROR);
return;
}

DWORD dwFileSize = GetFileSize(hFile, NULL);
if (dwFileSize == INVALID_FILE_SIZE) {
CloseHandle(hFile);
MessageBox(hwnd, L"Failed to get file size!", L"Error", MB_OK | MB_ICONERROR);
return;
}

WCHAR* buffer = new WCHAR[dwFileSize / sizeof(WCHAR) + 1];

DWORD bytesRead;
if (ReadFile(hFile, buffer, dwFileSize, &bytesRead, NULL)) {
if (bytesRead >= sizeof(WCHAR) && buffer[0] == 0xFEFF) {
memmove(buffer, buffer + 1, (bytesRead - sizeof(WCHAR)));
bytesRead -= sizeof(WCHAR);
}

buffer[bytesRead / sizeof(WCHAR)] = L'\0';

SetWindowText(hEdit, buffer);
}
else {
MessageBox(hwnd, L"Failed to read file!", L"Error", MB_OK | MB_ICONERROR);
}

delete[] buffer;
CloseHandle(hFile);
}
}

void EncodeText() {
int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

for (int i = 0; i < len; ++i) {
WCHAR originalChar = buffer[i];
WCHAR newChar = originalChar;

switch (originalChar) {
case L'A': case L'a': newChar = L'☉'; break;
case L'B': case L'b': newChar = L'●'; break;
case L'C': case L'c': newChar = L'☾'; break;
case L'D': case L'd': newChar = L'☽'; break;
case L'E': case L'e': newChar = L'○'; break;
case L'F': case L'f': newChar = L'☿'; break;
case L'G': case L'g': newChar = L'♀'; break;
case L'H': case L'h': newChar = L'♁'; break;
case L'I': case L'i': newChar = L'♂'; break;
case L'J': case L'j': newChar = L'♃'; break;
case L'K': case L'k': newChar = L'♄'; break;
case L'L': case L'l': newChar = L'♅'; break;
case L'M': case L'm': newChar = L'♆'; break;
case L'N': case L'n': newChar = L'♇'; break;
case L'O': case L'o': newChar = L'♈'; break;
case L'P': case L'p': newChar = L'♉'; break;
case L'Q': case L'q': newChar = L'♊'; break;
case L'R': case L'r': newChar = L'♋'; break;
case L'S': case L's': newChar = L'♌'; break;
case L'T': case L't': newChar = L'♍'; break;
case L'U': case L'u': newChar = L'♎'; break;
case L'V': case L'v': newChar = L'♏'; break;
case L'W': case L'w': newChar = L'♐'; break;
case L'X': case L'x': newChar = L'♑'; break;
case L'Y': case L'y': newChar = L'♒'; break;
case L'Z': case L'z': newChar = L'♓'; break;
default:
newChar = originalChar;
break;
}

buffer[i] = newChar;
}

SetWindowText(hEdit, buffer);
delete[] buffer;
}

UpdateStatusBar();
}

void DecodeText() {
int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

for (int i = 0; i < len; ++i) {
WCHAR originalChar = buffer[i];
WCHAR newChar = originalChar;

switch (originalChar) {
case L'☉': newChar = L'a'; break;
case L'●': newChar = L'b'; break;
case L'☾': newChar = L'c'; break;
case L'☽': newChar = L'd'; break;
case L'○': newChar = L'e'; break;
case L'☿': newChar = L'f'; break;
case L'♀': newChar = L'g'; break;
case L'♁': newChar = L'h'; break;
case L'♂': newChar = L'i'; break;
case L'♃': newChar = L'j'; break;
case L'♄': newChar = L'k'; break;
case L'♅': newChar = L'l'; break;
case L'♆': newChar = L'm'; break;
case L'♇': newChar = L'n'; break;
case L'♈': newChar = L'o'; break;
case L'♉': newChar = L'p'; break;
case L'♊': newChar = L'q'; break;
case L'♋': newChar = L'r'; break;
case L'♌': newChar = L's'; break;
case L'♍': newChar = L't'; break;
case L'♎': newChar = L'u'; break;
case L'♏': newChar = L'v'; break;
case L'♐': newChar = L'w'; break;
case L'♑': newChar = L'x'; break;
case L'♒': newChar = L'y'; break;
case L'♓': newChar = L'z'; break;
default:
newChar = originalChar;
break;
}

buffer[i] = newChar;
}

SetWindowText(hEdit, buffer);
delete[] buffer;
}

UpdateStatusBar();
}

LRESULT CALLBACK EditSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
switch (uMsg) {
case WM_CHAR: {
if (enableSubstitution) {
switch (wParam) {
case 'A': case 'a': wParam = L'☉'; break;
case 'B': case 'b': wParam = L'●'; break;
case 'C': case 'c': wParam = L'☾'; break;
case 'D': case 'd': wParam = L'☽'; break;
case 'E': case 'e': wParam = L'○'; break;
case 'F': case 'f': wParam = L'☿'; break;
case 'G': case 'g': wParam = L'♀'; break;
case 'H': case 'h': wParam = L'♁'; break;
case 'I': case 'i': wParam = L'♂'; break;
case 'J': case 'j': wParam = L'♃'; break;
case 'K': case 'k': wParam = L'♄'; break;
case 'L': case 'l': wParam = L'♅'; break;
case 'M': case 'm': wParam = L'♆'; break;
case 'N': case 'n': wParam = L'♇'; break;
case 'O': case 'o': wParam = L'♈'; break;
case 'P': case 'p': wParam = L'♉'; break;
case 'Q': case 'q': wParam = L'♊'; break;
case 'R': case 'r': wParam = L'♋'; break;
case 'S': case 's': wParam = L'♌'; break;
case 'T': case 't': wParam = L'♍'; break;
case 'U': case 'u': wParam = L'♎'; break;
case 'V': case 'v': wParam = L'♏'; break;
case 'W': case 'w': wParam = L'♐'; break;
case 'X': case 'x': wParam = L'♑'; break;
case 'Y': case 'y': wParam = L'♒'; break;
case 'Z': case 'z': wParam = L'♓'; break;
}
}

break;
}
case WM_KEYDOWN: {
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'E') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_E_ENCODE, 0), (LPARAM)hwnd);
return 0;
}

if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'D') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_D_DECODE, 0), (LPARAM)hwnd);
return 0;
}

if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'T') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_T, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'S') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_FILE_SAVE, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'O') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_FILE_OPEN, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'Q') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_FILE_EXIT, 0), (LPARAM)hwnd);
return 0;
}
break;
}
}
return CallWindowProc(OldEditProc, hwnd, uMsg, wParam, lParam);
}


LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
switch (uMsg) {
case WM_CREATE: {
hEdit = CreateWindowExW(
0, L"EDIT", L"",
WS_CHILD | WS_VISIBLE | WS_VSCROLL | WS_HSCROLL |
ES_LEFT | ES_MULTILINE | ES_AUTOVSCROLL | ES_AUTOHSCROLL,
0, 0, 0, 0,
hwnd, (HMENU)1, GetModuleHandle(NULL), NULL);
if (hEdit == NULL) {
MessageBox(hwnd, L"Could not create edit box.", L"Error", MB_OK | MB_ICONERROR);
return -1;
}

hFont = CreateFontW(
32, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE,
DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY,
DEFAULT_PITCH | FF_SWISS, L"Segoe UI Symbol");
SendMessage(hEdit, WM_SETFONT, (WPARAM)hFont, TRUE);

OldEditProc = (WNDPROC)SetWindowLongPtr(hEdit, GWLP_WNDPROC, (LONG_PTR)EditSubclassProc);

hStatusBar = CreateWindowExW(
0, STATUSCLASSNAME, NULL,
WS_CHILD | WS_VISIBLE | SBARS_SIZEGRIP,
0, 0, 0, 0,
hwnd, (HMENU)ID_STATUSBAR, GetModuleHandle(NULL), NULL);

int statusParts[] = { 200, -1 };
SendMessage(hStatusBar, SB_SETPARTS, sizeof(statusParts) / sizeof(int), (LPARAM)&statusParts);

UpdateStatusBar();
break;
}
case WM_SIZE: {
RECT rcClient;
GetClientRect(hwnd, &rcClient);
SetWindowPos(hEdit, NULL, 0, 0, rcClient.right, rcClient.bottom - 20, SWP_NOZORDER);
SetWindowPos(hStatusBar, NULL, 0, rcClient.bottom - 20, rcClient.right, 20, SWP_NOZORDER);
break;
}
case WM_COMMAND: {
int wmId = LOWORD(wParam);
switch (wmId) {
case ID_FILE_SAVE:
SaveFile(hwnd);
break;
case ID_FILE_OPEN:
OpenFile(hwnd);
break;
case ID_TOGGLE_SUBSTITUTION:
enableSubstitution = !enableSubstitution;
UpdateStatusBar();
break;
case ID_CODE_ENCODE:
SendMessage(hEdit, WM_CUT, 0, 0);
if (OpenClipboard(hwnd)) {
HANDLE hClipboardData = GetClipboardData(CF_UNICODETEXT);
if (hClipboardData != NULL) {
WCHAR* pszData = static_cast<WCHAR*>(GlobalLock(hClipboardData));
if (pszData != NULL) {

size_t length = wcslen(pszData);
WCHAR* pszModifiedData = new WCHAR[length + 1];
if (pszModifiedData != NULL) {
for (size_t i = 0; i < length; ++i) {
if (pszData[i] == L'a' || pszData[i] == L'A') {
pszModifiedData[i] = L'☉';
}
else if (pszData[i] == L'b' || pszData[i] == L'B') {
pszModifiedData[i] = L'●';
}
else if (pszData[i] == L'c' || pszData[i] == L'C') {
pszModifiedData[i] = L'☾';
}
else if (pszData[i] == L'd' || pszData[i] == L'D') {
pszModifiedData[i] = L'☽';
}
else if (pszData[i] == L'e' || pszData[i] == L'E') {
pszModifiedData[i] = L'○';
}
else if (pszData[i] == L'f' || pszData[i] == L'F') {
pszModifiedData[i] = L'☿';
}
else if (pszData[i] == L'g' || pszData[i] == L'G') {
pszModifiedData[i] = L'♀';
}
else if (pszData[i] == L'h' || pszData[i] == L'H') {
pszModifiedData[i] = L'♁';
}
else if (pszData[i] == L'i' || pszData[i] == L'I') {
pszModifiedData[i] = L'♂';
}
else if (pszData[i] == L'j' || pszData[i] == L'J') {
pszModifiedData[i] = L'♃';
}
else if (pszData[i] == L'k' || pszData[i] == L'K') {
pszModifiedData[i] = L'♄';
}
else if (pszData[i] == L'l' || pszData[i] == L'L') {
pszModifiedData[i] = L'♅';
}
else if (pszData[i] == L'm' || pszData[i] == L'M') {
pszModifiedData[i] = L'♆';
}
else if (pszData[i] == L'n' || pszData[i] == L'N') {
pszModifiedData[i] = L'♇';
}
else if (pszData[i] == L'o' || pszData[i] == L'O') {
pszModifiedData[i] = L'♈';
}
else if (pszData[i] == L'p' || pszData[i] == L'P') {
pszModifiedData[i] = L'♉';
}
else if (pszData[i] == L'q' || pszData[i] == L'Q') {
pszModifiedData[i] = L'♊';
}
else if (pszData[i] == L'r' || pszData[i] == L'R') {
pszModifiedData[i] = L'♋';
}
else if (pszData[i] == L's' || pszData[i] == L'S') {
pszModifiedData[i] = L'♌';
}
else if (pszData[i] == L't' || pszData[i] == L'T') {
pszModifiedData[i] = L'♍';
}
else if (pszData[i] == L'u' || pszData[i] == L'U') {
pszModifiedData[i] = L'♎';
}
else if (pszData[i] == L'v' || pszData[i] == L'V') {
pszModifiedData[i] = L'♏';
}
else if (pszData[i] == L'w' || pszData[i] == L'W') {
pszModifiedData[i] = L'♐';
}
else if (pszData[i] == L'x' || pszData[i] == L'X') {
pszModifiedData[i] = L'♑';
}
else if (pszData[i] == L'y' || pszData[i] == L'Y') {
pszModifiedData[i] = L'♒';
}
else if (pszData[i] == L'z' || pszData[i] == L'Z') {
pszModifiedData[i] = L'♓';
}
else {
pszModifiedData[i] = pszData[i];
}
}
pszModifiedData[length] = L'\0';


EmptyClipboard();


HANDLE hNewData = GlobalAlloc(GMEM_MOVEABLE, (length + 1) * sizeof(WCHAR));
if (hNewData != NULL) {
WCHAR* pszNewData = static_cast<WCHAR*>(GlobalLock(hNewData));
if (pszNewData != NULL) {
wcscpy_s(pszNewData, length + 1, pszModifiedData);
GlobalUnlock(hNewData);


SetClipboardData(CF_UNICODETEXT, hNewData);
}
else {
GlobalFree(hNewData);
}
}

delete[] pszModifiedData;
}
GlobalUnlock(hClipboardData);
}
}

CloseClipboard();
}
SendMessage(hEdit, WM_PASTE, 0, 0);
break;

case ID_CODE_DECODE:
SendMessage(hEdit, WM_CUT, 0, 0);
if (OpenClipboard(hwnd)) {
HANDLE hClipboardData = GetClipboardData(CF_UNICODETEXT);
if (hClipboardData != NULL) {
WCHAR* pszData = static_cast<WCHAR*>(GlobalLock(hClipboardData));
if (pszData != NULL) {

size_t length = wcslen(pszData);
WCHAR* pszModifiedData = new WCHAR[length + 1];
if (pszModifiedData != NULL) {
for (size_t i = 0; i < length; ++i) {
if (pszData[i] == L'☉') {
pszModifiedData[i] = L'a';
}
else if (pszData[i] == L'●') {
pszModifiedData[i] = L'b';
}
else if (pszData[i] == L'☾') {
pszModifiedData[i] = L'c';
}
else if (pszData[i] == L'☽') {
pszModifiedData[i] = L'd';
}
else if (pszData[i] == L'○') {
pszModifiedData[i] = L'e';
}
else if (pszData[i] == L'☿') {
pszModifiedData[i] = L'f';
}
else if (pszData[i] == L'♀') {
pszModifiedData[i] = L'g';
}
else if (pszData[i] == L'♁') {
pszModifiedData[i] = L'h';
}
else if (pszData[i] == L'♂') {
pszModifiedData[i] = L'i';
}
else if (pszData[i] == L'♃') {
pszModifiedData[i] = L'j';
}
else if (pszData[i] == L'♄') {
pszModifiedData[i] = L'k';
}
else if (pszData[i] == L'♅') {
pszModifiedData[i] = L'l';
}
else if (pszData[i] == L'♆') {
pszModifiedData[i] = L'm';
}
else if (pszData[i] == L'♇') {
pszModifiedData[i] = L'n';
}
else if (pszData[i] == L'♈') {
pszModifiedData[i] = L'o';
}
else if (pszData[i] == L'♉') {
pszModifiedData[i] = L'p';
}
else if (pszData[i] == L'♊') {
pszModifiedData[i] = L'q';
}
else if (pszData[i] == L'♋') {
pszModifiedData[i] = L'r';
}
else if (pszData[i] == L'♌') {
pszModifiedData[i] = L's';
}
else if (pszData[i] == L'♍') {
pszModifiedData[i] = L't';
}
else if (pszData[i] == L'♎') {
pszModifiedData[i] = L'u';
}
else if (pszData[i] == L'♏') {
pszModifiedData[i] = L'v';
}
else if (pszData[i] == L'♐') {
pszModifiedData[i] = L'w';
}
else if (pszData[i] == L'♑') {
pszModifiedData[i] = L'x';
}
else if (pszData[i] == L'♒') {
pszModifiedData[i] = L'y';
}
else if (pszData[i] == L'♓') {
pszModifiedData[i] = L'z';
}

else {
pszModifiedData[i] = pszData[i];
}
}
pszModifiedData[length] = L'\0';

EmptyClipboard();

HANDLE hNewData = GlobalAlloc(GMEM_MOVEABLE, (length + 1) * sizeof(WCHAR));
if (hNewData != NULL) {
WCHAR* pszNewData = static_cast<WCHAR*>(GlobalLock(hNewData));
if (pszNewData != NULL) {
wcscpy_s(pszNewData, length + 1, pszModifiedData);
GlobalUnlock(hNewData);


SetClipboardData(CF_UNICODETEXT, hNewData);
}
else {
GlobalFree(hNewData);
}
}

delete[] pszModifiedData;
}
GlobalUnlock(hClipboardData);
}
}

CloseClipboard();
}
SendMessage(hEdit, WM_PASTE, 0, 0);
break;

case ID_EDIT_CUT: {
SendMessage(hEdit, WM_CUT, 0, 0);
break;
}
case ID_EDIT_COPY: {
SendMessage(hEdit, WM_COPY, 0, 0);
break;
}
case ID_EDIT_PASTE: {
SendMessage(hEdit, WM_PASTE, 0, 0);
break;
}
case ID_CTRL_D_DECODE: {
SendMessage(hwnd, WM_COMMAND, MAKEWPARAM(ID_CODE_DECODE, 0), 0);
break;
}
case ID_CTRL_E_ENCODE: {
SendMessage(hwnd, WM_COMMAND, MAKEWPARAM(ID_CODE_ENCODE, 0), 0);
break;
}
case ID_CTRL_T: {
enableSubstitution = !enableSubstitution;
UpdateStatusBar();
break;
}

case ID_FILE_EXIT:
DestroyWindow(hwnd);
break;
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
break;
}
case WM_DESTROY: {
if (hFont) {
DeleteObject(hFont);
}
PostQuitMessage(0);
break;
}
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
return 0;
}

int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PWSTR pCmdLine, int nCmdShow) {
INITCOMMONCONTROLSEX iccex;
iccex.dwSize = sizeof(iccex);
iccex.dwICC = ICC_WIN95_CLASSES;
InitCommonControlsEx(&iccex);

WNDCLASS wc = {};
wc.lpfnWndProc = WindowProc;
wc.hInstance = hInstance;
wc.lpszClassName = CLASS_NAME;

RegisterClass(&wc);

HWND hwnd = CreateWindowExW(
0, CLASS_NAME, WINDOW_TITLE,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT, 800, 600,
NULL, NULL, hInstance, NULL);

if (hwnd == NULL) {
return 0;
}

HMENU hMenu = CreateMenu();
HMENU hSubMenuFile = CreatePopupMenu();
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_OPEN, L"&Open - Ctrl + O");
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_SAVE, L"&Save - Ctrl + S");
AppendMenu(hSubMenuFile, MF_SEPARATOR, 0, NULL);
AppendMenu(hSubMenuFile, MF_SEPARATOR, 0, NULL);
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_EXIT, L"E&xit - Ctrl + Q");

HMENU hSubMenuCode = CreatePopupMenu();
AppendMenu(hSubMenuCode, MF_STRING, ID_CODE_ENCODE, L"&Encode - Ctrl + E");
AppendMenu(hSubMenuCode, MF_STRING, ID_CODE_DECODE, L"&Decode - Ctrl + D");
AppendMenu(hSubMenuCode, MF_STRING, ID_TOGGLE_SUBSTITUTION, L"&Toggle - Ctrl + T");

HMENU hSubMenuEdit = CreatePopupMenu();
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_CUT, L"&Cut - Ctrl + X");
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_COPY, L"&Copy - Ctrl + C");
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_PASTE, L"&Paste - Ctrl + V");

AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenuFile, L"&File");
AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenuEdit, L"&Edit");
AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenuCode, L"&Code");


SetMenu(hwnd, hMenu);

ShowWindow(hwnd, nCmdShow);
UpdateWindow(hwnd);

MSG msg = {};
while (GetMessage(&msg, NULL, 0, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}

return msg.wParam;
}

[Corey White]

Fixed the annoying "beep"
Still at: https://github.com/alt-magick/Correspondence

#include <windows.h>
#include <commctrl.h>
#include <commdlg.h>
#include <string>

#define ID_FILE_SAVE 1001
#define ID_FILE_EXIT 1002
#define ID_FILE_OPEN 1003
#define ID_TOGGLE_SUBSTITUTION 1004
#define ID_CODE_ENCODE 1005
#define ID_CODE_DECODE 1006
#define ID_STATUSBAR 1007
#define ID_EDIT_CUT 1008
#define ID_EDIT_COPY 1009
#define ID_EDIT_PASTE 1010
#define ID_CTRL_E_ENCODE 1011
#define ID_CTRL_D_DECODE 1012
#define ID_CTRL_T 1013
#define ID_CTRL_S 1014
#define ID_CTRL_O 1015
#define ID_CTRL_Q 1016

#pragma comment(lib, "user32.lib")
#pragma comment(lib, "comctl32.lib")
#pragma comment(linker, "/SUBSYSTEM:WINDOWS /ENTRY:wWinMainCRTStartup")

const wchar_t CLASS_NAME[] = L"Correspondence";
const wchar_t WINDOW_TITLE[] = L"Correspondence";

HWND hEdit;
HWND hStatusBar;
WNDPROC OldEditProc;
HFONT hFont;
OPENFILENAME ofn;
bool enableSubstitution = false;

void SaveFile(HWND hwnd);
void OpenFile(HWND hwnd);
void EncodeText();
void DecodeText();

void UpdateStatusBar() {
int index = 0;
const int bufferSize = 256;
wchar_t statusText[bufferSize];
swprintf_s(statusText, bufferSize, L"Code %s", enableSubstitution ? L"Enabled" : L"Disabled");
SendMessage(hStatusBar, SB_SETTEXT, index, (LPARAM)statusText);
}

void SaveFile(HWND hwnd) {
WCHAR szFileName[MAX_PATH] = L"";

ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;
ofn.lpstrFile = szFileName;
ofn.lpstrFile[0] = L'\0';
ofn.nMaxFile = sizeof(szFileName);
ofn.lpstrFilter = L"Text Files (*.txt)\0*.txt\0All Files (*.*)\0*.*\0";
ofn.nFilterIndex = 1;

if (GetSaveFileName(&ofn) == TRUE) {
HANDLE hFile = CreateFile(szFileName, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
MessageBox(hwnd, L"Failed to create file!", L"Error", MB_OK | MB_ICONERROR);
return;
}

int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

const WCHAR bom = 0xFEFF;
DWORD bytesWritten;
WriteFile(hFile, &bom, sizeof(WCHAR), &bytesWritten, NULL);

WriteFile(hFile, buffer, len * sizeof(WCHAR), &bytesWritten, NULL);

delete[] buffer;
}

CloseHandle(hFile);

MessageBox(hwnd, L"File saved successfully!", L"Correspondence", MB_OK | MB_ICONINFORMATION);
}
}

void OpenFile(HWND hwnd) {
WCHAR szFileName[MAX_PATH] = L"";

ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;
ofn.lpstrFile = szFileName;
ofn.lpstrFile[0] = L'\0';
ofn.nMaxFile = sizeof(szFileName);
ofn.lpstrFilter = L"Text Files (*.txt)\0*.txt\0All Files (*.*)\0*.*\0";
ofn.nFilterIndex = 1;

if (GetOpenFileName(&ofn) == TRUE) {
HANDLE hFile = CreateFile(szFileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
MessageBox(hwnd, L"Failed to open file!", L"Error", MB_OK | MB_ICONERROR);
return;
}

DWORD dwFileSize = GetFileSize(hFile, NULL);
if (dwFileSize == INVALID_FILE_SIZE) {
CloseHandle(hFile);
MessageBox(hwnd, L"Failed to get file size!", L"Error", MB_OK | MB_ICONERROR);
return;
}

WCHAR* buffer = new WCHAR[dwFileSize / sizeof(WCHAR) + 1];

DWORD bytesRead;
if (ReadFile(hFile, buffer, dwFileSize, &bytesRead, NULL)) {
if (bytesRead >= sizeof(WCHAR) && buffer[0] == 0xFEFF) {
memmove(buffer, buffer + 1, (bytesRead - sizeof(WCHAR)));
bytesRead -= sizeof(WCHAR);
}

buffer[bytesRead / sizeof(WCHAR)] = L'\0';

SetWindowText(hEdit, buffer);
}
else {
MessageBox(hwnd, L"Failed to read file!", L"Error", MB_OK | MB_ICONERROR);
}

delete[] buffer;
CloseHandle(hFile);
}
}

void EncodeText() {
int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

for (int i = 0; i < len; ++i) {
WCHAR originalChar = buffer[i];
WCHAR newChar = originalChar;

switch (originalChar) {
case L'A': case L'a': newChar = L'☉'; break;
case L'B': case L'b': newChar = L'●'; break;
case L'C': case L'c': newChar = L'☾'; break;
case L'D': case L'd': newChar = L'☽'; break;
case L'E': case L'e': newChar = L'○'; break;
case L'F': case L'f': newChar = L'☿'; break;
case L'G': case L'g': newChar = L'♀'; break;
case L'H': case L'h': newChar = L'♁'; break;
case L'I': case L'i': newChar = L'♂'; break;
case L'J': case L'j': newChar = L'♃'; break;
case L'K': case L'k': newChar = L'♄'; break;
case L'L': case L'l': newChar = L'♅'; break;
case L'M': case L'm': newChar = L'♆'; break;
case L'N': case L'n': newChar = L'♇'; break;
case L'O': case L'o': newChar = L'♈'; break;
case L'P': case L'p': newChar = L'♉'; break;
case L'Q': case L'q': newChar = L'♊'; break;
case L'R': case L'r': newChar = L'♋'; break;
case L'S': case L's': newChar = L'♌'; break;
case L'T': case L't': newChar = L'♍'; break;
case L'U': case L'u': newChar = L'♎'; break;
case L'V': case L'v': newChar = L'♏'; break;
case L'W': case L'w': newChar = L'♐'; break;
case L'X': case L'x': newChar = L'♑'; break;
case L'Y': case L'y': newChar = L'♒'; break;
case L'Z': case L'z': newChar = L'♓'; break;
default:
newChar = originalChar;
break;
}

buffer[i] = newChar;
}

SetWindowText(hEdit, buffer);
delete[] buffer;
}

UpdateStatusBar();
}

void DecodeText() {
int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

for (int i = 0; i < len; ++i) {
WCHAR originalChar = buffer[i];
WCHAR newChar = originalChar;

switch (originalChar) {
case L'☉': newChar = L'a'; break;
case L'●': newChar = L'b'; break;
case L'☾': newChar = L'c'; break;
case L'☽': newChar = L'd'; break;
case L'○': newChar = L'e'; break;
case L'☿': newChar = L'f'; break;
case L'♀': newChar = L'g'; break;
case L'♁': newChar = L'h'; break;
case L'♂': newChar = L'i'; break;
case L'♃': newChar = L'j'; break;
case L'♄': newChar = L'k'; break;
case L'♅': newChar = L'l'; break;
case L'♆': newChar = L'm'; break;
case L'♇': newChar = L'n'; break;
case L'♈': newChar = L'o'; break;
case L'♉': newChar = L'p'; break;
case L'♊': newChar = L'q'; break;
case L'♋': newChar = L'r'; break;
case L'♌': newChar = L's'; break;
case L'♍': newChar = L't'; break;
case L'♎': newChar = L'u'; break;
case L'♏': newChar = L'v'; break;
case L'♐': newChar = L'w'; break;
case L'♑': newChar = L'x'; break;
case L'♒': newChar = L'y'; break;
case L'♓': newChar = L'z'; break;
default:
newChar = originalChar;
break;
}

buffer[i] = newChar;
}

SetWindowText(hEdit, buffer);
delete[] buffer;
}

UpdateStatusBar();
}

LRESULT CALLBACK EditSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
switch (uMsg) {
case WM_CHAR: {
bool ctrlPressed = GetKeyState(VK_CONTROL) & 0x8000;

if (ctrlPressed) {
return 0;
}
if (enableSubstitution) {
switch (wParam) {
case 'A': case 'a': wParam = L'☉'; break;
case 'B': case 'b': wParam = L'●'; break;
case 'C': case 'c': wParam = L'☾'; break;
case 'D': case 'd': wParam = L'☽'; break;
case 'E': case 'e': wParam = L'○'; break;
case 'F': case 'f': wParam = L'☿'; break;
case 'G': case 'g': wParam = L'♀'; break;
case 'H': case 'h': wParam = L'♁'; break;
case 'I': case 'i': wParam = L'♂'; break;
case 'J': case 'j': wParam = L'♃'; break;
case 'K': case 'k': wParam = L'♄'; break;
case 'L': case 'l': wParam = L'♅'; break;
case 'M': case 'm': wParam = L'♆'; break;
case 'N': case 'n': wParam = L'♇'; break;
case 'O': case 'o': wParam = L'♈'; break;
case 'P': case 'p': wParam = L'♉'; break;
case 'Q': case 'q': wParam = L'♊'; break;
case 'R': case 'r': wParam = L'♋'; break;
case 'S': case 's': wParam = L'♌'; break;
case 'T': case 't': wParam = L'♍'; break;
case 'U': case 'u': wParam = L'♎'; break;
case 'V': case 'v': wParam = L'♏'; break;
case 'W': case 'w': wParam = L'♐'; break;
case 'X': case 'x': wParam = L'♑'; break;
case 'Y': case 'y': wParam = L'♒'; break;
case 'Z': case 'z': wParam = L'♓'; break;
}
}

break;
}
case WM_KEYDOWN: {
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'E') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_E_ENCODE, 0), (LPARAM)hwnd);
return 0;
}

if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'D') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_D_DECODE, 0), (LPARAM)hwnd);
return 0;
}

if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'T') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_T, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'S') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_FILE_SAVE, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'O') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_FILE_OPEN, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'Q') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_FILE_EXIT, 0), (LPARAM)hwnd);
return 0;
}
break;
}
}
return CallWindowProc(OldEditProc, hwnd, uMsg, wParam, lParam);
}


LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
switch (uMsg) {
case WM_CREATE: {
hEdit = CreateWindowExW(
0, L"EDIT", L"",
WS_CHILD | WS_VISIBLE | WS_VSCROLL | WS_HSCROLL |
ES_LEFT | ES_MULTILINE | ES_AUTOVSCROLL | ES_AUTOHSCROLL,
0, 0, 0, 0,
hwnd, (HMENU)1, GetModuleHandle(NULL), NULL);
if (hEdit == NULL) {
MessageBox(hwnd, L"Could not create edit box.", L"Error", MB_OK | MB_ICONERROR);
return -1;
}

hFont = CreateFontW(
32, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE,
DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY,
DEFAULT_PITCH | FF_SWISS, L"Segoe UI Symbol");
SendMessage(hEdit, WM_SETFONT, (WPARAM)hFont, TRUE);

OldEditProc = (WNDPROC)SetWindowLongPtr(hEdit, GWLP_WNDPROC, (LONG_PTR)EditSubclassProc);

hStatusBar = CreateWindowExW(
0, STATUSCLASSNAME, NULL,
WS_CHILD | WS_VISIBLE | SBARS_SIZEGRIP,
0, 0, 0, 0,
hwnd, (HMENU)ID_STATUSBAR, GetModuleHandle(NULL), NULL);

int statusParts[] = { 200, -1 };
SendMessage(hStatusBar, SB_SETPARTS, sizeof(statusParts) / sizeof(int), (LPARAM)&statusParts);

UpdateStatusBar();
break;
}
case WM_SIZE: {
RECT rcClient;
GetClientRect(hwnd, &rcClient);
SetWindowPos(hEdit, NULL, 0, 0, rcClient.right, rcClient.bottom - 20, SWP_NOZORDER);
SetWindowPos(hStatusBar, NULL, 0, rcClient.bottom - 20, rcClient.right, 20, SWP_NOZORDER);
break;
}
case WM_COMMAND: {
int wmId = LOWORD(wParam);
switch (wmId) {
case ID_FILE_SAVE:
SaveFile(hwnd);
break;
case ID_FILE_OPEN:
OpenFile(hwnd);
break;
case ID_TOGGLE_SUBSTITUTION:
enableSubstitution = !enableSubstitution;
UpdateStatusBar();
break;
case ID_CODE_ENCODE:
SendMessage(hEdit, WM_CUT, 0, 0);
if (OpenClipboard(hwnd)) {
HANDLE hClipboardData = GetClipboardData(CF_UNICODETEXT);
if (hClipboardData != NULL) {
WCHAR* pszData = static_cast<WCHAR*>(GlobalLock(hClipboardData));
if (pszData != NULL) {

size_t length = wcslen(pszData);
WCHAR* pszModifiedData = new WCHAR[length + 1];
if (pszModifiedData != NULL) {
for (size_t i = 0; i < length; ++i) {
if (pszData[i] == L'a' || pszData[i] == L'A') {
pszModifiedData[i] = L'☉';
}
else if (pszData[i] == L'b' || pszData[i] == L'B') {
pszModifiedData[i] = L'●';
}
else if (pszData[i] == L'c' || pszData[i] == L'C') {
pszModifiedData[i] = L'☾';
}
else if (pszData[i] == L'd' || pszData[i] == L'D') {
pszModifiedData[i] = L'☽';
}
else if (pszData[i] == L'e' || pszData[i] == L'E') {
pszModifiedData[i] = L'○';
}
else if (pszData[i] == L'f' || pszData[i] == L'F') {
pszModifiedData[i] = L'☿';
}
else if (pszData[i] == L'g' || pszData[i] == L'G') {
pszModifiedData[i] = L'♀';
}
else if (pszData[i] == L'h' || pszData[i] == L'H') {
pszModifiedData[i] = L'♁';
}
else if (pszData[i] == L'i' || pszData[i] == L'I') {
pszModifiedData[i] = L'♂';
}
else if (pszData[i] == L'j' || pszData[i] == L'J') {
pszModifiedData[i] = L'♃';
}
else if (pszData[i] == L'k' || pszData[i] == L'K') {
pszModifiedData[i] = L'♄';
}
else if (pszData[i] == L'l' || pszData[i] == L'L') {
pszModifiedData[i] = L'♅';
}
else if (pszData[i] == L'm' || pszData[i] == L'M') {
pszModifiedData[i] = L'♆';
}
else if (pszData[i] == L'n' || pszData[i] == L'N') {
pszModifiedData[i] = L'♇';
}
else if (pszData[i] == L'o' || pszData[i] == L'O') {
pszModifiedData[i] = L'♈';
}
else if (pszData[i] == L'p' || pszData[i] == L'P') {
pszModifiedData[i] = L'♉';
}
else if (pszData[i] == L'q' || pszData[i] == L'Q') {
pszModifiedData[i] = L'♊';
}
else if (pszData[i] == L'r' || pszData[i] == L'R') {
pszModifiedData[i] = L'♋';
}
else if (pszData[i] == L's' || pszData[i] == L'S') {
pszModifiedData[i] = L'♌';
}
else if (pszData[i] == L't' || pszData[i] == L'T') {
pszModifiedData[i] = L'♍';
}
else if (pszData[i] == L'u' || pszData[i] == L'U') {
pszModifiedData[i] = L'♎';
}
else if (pszData[i] == L'v' || pszData[i] == L'V') {
pszModifiedData[i] = L'♏';
}
else if (pszData[i] == L'w' || pszData[i] == L'W') {
pszModifiedData[i] = L'♐';
}
else if (pszData[i] == L'x' || pszData[i] == L'X') {
pszModifiedData[i] = L'♑';
}
else if (pszData[i] == L'y' || pszData[i] == L'Y') {
pszModifiedData[i] = L'♒';
}
else if (pszData[i] == L'z' || pszData[i] == L'Z') {
pszModifiedData[i] = L'♓';
}
else {
pszModifiedData[i] = pszData[i];
}
}
pszModifiedData[length] = L'\0';


EmptyClipboard();


HANDLE hNewData = GlobalAlloc(GMEM_MOVEABLE, (length + 1) * sizeof(WCHAR));
if (hNewData != NULL) {
WCHAR* pszNewData = static_cast<WCHAR*>(GlobalLock(hNewData));
if (pszNewData != NULL) {
wcscpy_s(pszNewData, length + 1, pszModifiedData);
GlobalUnlock(hNewData);


SetClipboardData(CF_UNICODETEXT, hNewData);
}
else {
GlobalFree(hNewData);
}
}

delete[] pszModifiedData;
}
GlobalUnlock(hClipboardData);
}
}

CloseClipboard();
}
SendMessage(hEdit, WM_PASTE, 0, 0);
break;

case ID_CODE_DECODE:
SendMessage(hEdit, WM_CUT, 0, 0);
if (OpenClipboard(hwnd)) {
HANDLE hClipboardData = GetClipboardData(CF_UNICODETEXT);
if (hClipboardData != NULL) {
WCHAR* pszData = static_cast<WCHAR*>(GlobalLock(hClipboardData));
if (pszData != NULL) {

size_t length = wcslen(pszData);
WCHAR* pszModifiedData = new WCHAR[length + 1];
if (pszModifiedData != NULL) {
for (size_t i = 0; i < length; ++i) {
if (pszData[i] == L'☉') {
pszModifiedData[i] = L'a';
}
else if (pszData[i] == L'●') {
pszModifiedData[i] = L'b';
}
else if (pszData[i] == L'☾') {
pszModifiedData[i] = L'c';
}
else if (pszData[i] == L'☽') {
pszModifiedData[i] = L'd';
}
else if (pszData[i] == L'○') {
pszModifiedData[i] = L'e';
}
else if (pszData[i] == L'☿') {
pszModifiedData[i] = L'f';
}
else if (pszData[i] == L'♀') {
pszModifiedData[i] = L'g';
}
else if (pszData[i] == L'♁') {
pszModifiedData[i] = L'h';
}
else if (pszData[i] == L'♂') {
pszModifiedData[i] = L'i';
}
else if (pszData[i] == L'♃') {
pszModifiedData[i] = L'j';
}
else if (pszData[i] == L'♄') {
pszModifiedData[i] = L'k';
}
else if (pszData[i] == L'♅') {
pszModifiedData[i] = L'l';
}
else if (pszData[i] == L'♆') {
pszModifiedData[i] = L'm';
}
else if (pszData[i] == L'♇') {
pszModifiedData[i] = L'n';
}
else if (pszData[i] == L'♈') {
pszModifiedData[i] = L'o';
}
else if (pszData[i] == L'♉') {
pszModifiedData[i] = L'p';
}
else if (pszData[i] == L'♊') {
pszModifiedData[i] = L'q';
}
else if (pszData[i] == L'♋') {
pszModifiedData[i] = L'r';
}
else if (pszData[i] == L'♌') {
pszModifiedData[i] = L's';
}
else if (pszData[i] == L'♍') {
pszModifiedData[i] = L't';
}
else if (pszData[i] == L'♎') {
pszModifiedData[i] = L'u';
}
else if (pszData[i] == L'♏') {
pszModifiedData[i] = L'v';
}
else if (pszData[i] == L'♐') {
pszModifiedData[i] = L'w';
}
else if (pszData[i] == L'♑') {
pszModifiedData[i] = L'x';
}
else if (pszData[i] == L'♒') {
pszModifiedData[i] = L'y';
}
else if (pszData[i] == L'♓') {
pszModifiedData[i] = L'z';
}

else {
pszModifiedData[i] = pszData[i];
}
}
pszModifiedData[length] = L'\0';

EmptyClipboard();

HANDLE hNewData = GlobalAlloc(GMEM_MOVEABLE, (length + 1) * sizeof(WCHAR));
if (hNewData != NULL) {
WCHAR* pszNewData = static_cast<WCHAR*>(GlobalLock(hNewData));
if (pszNewData != NULL) {
wcscpy_s(pszNewData, length + 1, pszModifiedData);
GlobalUnlock(hNewData);


SetClipboardData(CF_UNICODETEXT, hNewData);
}
else {
GlobalFree(hNewData);
}
}

delete[] pszModifiedData;
}
GlobalUnlock(hClipboardData);
}
}

CloseClipboard();
}
SendMessage(hEdit, WM_PASTE, 0, 0);
break;

case ID_EDIT_CUT: {
SendMessage(hEdit, WM_CUT, 0, 0);
break;
}
case ID_EDIT_COPY: {
SendMessage(hEdit, WM_COPY, 0, 0);
break;
}
case ID_EDIT_PASTE: {
SendMessage(hEdit, WM_PASTE, 0, 0);
break;
}
case ID_CTRL_D_DECODE: {
SendMessage(hwnd, WM_COMMAND, MAKEWPARAM(ID_CODE_DECODE, 0), 0);
break;
}
case ID_CTRL_E_ENCODE: {
SendMessage(hwnd, WM_COMMAND, MAKEWPARAM(ID_CODE_ENCODE, 0), 0);
break;
}
case ID_CTRL_T: {
enableSubstitution = !enableSubstitution;
UpdateStatusBar();
break;
}

case ID_FILE_EXIT:
DestroyWindow(hwnd);
break;
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
break;
}
case WM_DESTROY: {
if (hFont) {
DeleteObject(hFont);
}
PostQuitMessage(0);
break;
}
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
return 0;
}

int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PWSTR pCmdLine, int nCmdShow) {
INITCOMMONCONTROLSEX iccex;
iccex.dwSize = sizeof(iccex);
iccex.dwICC = ICC_WIN95_CLASSES;
InitCommonControlsEx(&iccex);

WNDCLASS wc = {};
wc.lpfnWndProc = WindowProc;
wc.hInstance = hInstance;
wc.lpszClassName = CLASS_NAME;

RegisterClass(&wc);

HWND hwnd = CreateWindowExW(
0, CLASS_NAME, WINDOW_TITLE,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT, 800, 600,
NULL, NULL, hInstance, NULL);

if (hwnd == NULL) {
return 0;
}

HMENU hMenu = CreateMenu();
HMENU hSubMenuFile = CreatePopupMenu();
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_OPEN, L"&Open - Ctrl + O");
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_SAVE, L"&Save - Ctrl + S");
AppendMenu(hSubMenuFile, MF_SEPARATOR, 0, NULL);
AppendMenu(hSubMenuFile, MF_SEPARATOR, 0, NULL);
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_EXIT, L"E&xit - Ctrl + Q");

HMENU hSubMenuCode = CreatePopupMenu();
AppendMenu(hSubMenuCode, MF_STRING, ID_CODE_ENCODE, L"&Encode - Ctrl + E");
AppendMenu(hSubMenuCode, MF_STRING, ID_CODE_DECODE, L"&Decode - Ctrl + D");
AppendMenu(hSubMenuCode, MF_STRING, ID_TOGGLE_SUBSTITUTION, L"&Toggle - Ctrl + T");

HMENU hSubMenuEdit = CreatePopupMenu();
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_CUT, L"&Cut - Ctrl + X");
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_COPY, L"&Copy - Ctrl + C");
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_PASTE, L"&Paste - Ctrl + V");

AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenuFile, L"&File");
AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenuEdit, L"&Edit");
AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenuCode, L"&Code");


SetMenu(hwnd, hMenu);

ShowWindow(hwnd, nCmdShow);
UpdateWindow(hwnd);

MSG msg = {};
while (GetMessage(&msg, NULL, 0, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}

return msg.wParam;
}

[Corey White]

Added "Ctrl+A" function.
Still at: https://github.com/alt-magick/Correspondence

#include <windows.h>
#include <commctrl.h>
#include <commdlg.h>
#include <string>

#define ID_FILE_SAVE 1001
#define ID_FILE_EXIT 1002
#define ID_FILE_OPEN 1003
#define ID_TOGGLE_SUBSTITUTION 1004
#define ID_CODE_ENCODE 1005
#define ID_CODE_DECODE 1006
#define ID_STATUSBAR 1007
#define ID_EDIT_CUT 1008
#define ID_EDIT_COPY 1009
#define ID_EDIT_PASTE 1010
#define ID_CTRL_E_ENCODE 1011
#define ID_CTRL_D_DECODE 1012
#define ID_CTRL_T 1013
#define ID_CTRL_S 1014
#define ID_CTRL_O 1015
#define ID_CTRL_Q 1016
#define ID_CTRL_A 1017

#pragma comment(lib, "user32.lib")
#pragma comment(lib, "comctl32.lib")
#pragma comment(linker, "/SUBSYSTEM:WINDOWS /ENTRY:wWinMainCRTStartup")

const wchar_t CLASS_NAME[] = L"Correspondence";
const wchar_t WINDOW_TITLE[] = L"Correspondence";

HWND hEdit;
HWND hStatusBar;
WNDPROC OldEditProc;
HFONT hFont;
OPENFILENAME ofn;
bool enableSubstitution = false;

void SaveFile(HWND hwnd);
void OpenFile(HWND hwnd);
void EncodeText();
void DecodeText();

void SelectAllText(HWND hwndEdit) {
// Get the length of the text in the edit control
int textLength = GetWindowTextLength(hwndEdit);

// Set the selection to encompass the entire text
SendMessage(hwndEdit, EM_SETSEL, 0, textLength);
}

void UpdateStatusBar() {
int index = 0;
const int bufferSize = 256;
wchar_t statusText[bufferSize];
swprintf_s(statusText, bufferSize, L"Code %s", enableSubstitution ? L"Enabled" : L"Disabled");
SendMessage(hStatusBar, SB_SETTEXT, index, (LPARAM)statusText);
}

void SaveFile(HWND hwnd) {
WCHAR szFileName[MAX_PATH] = L"";

ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;
ofn.lpstrFile = szFileName;
ofn.lpstrFile[0] = L'\0';
ofn.nMaxFile = sizeof(szFileName);
ofn.lpstrFilter = L"Text Files (*.txt)\0*.txt\0All Files (*.*)\0*.*\0";
ofn.nFilterIndex = 1;

if (GetSaveFileName(&ofn) == TRUE) {
HANDLE hFile = CreateFile(szFileName, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
MessageBox(hwnd, L"Failed to create file!", L"Error", MB_OK | MB_ICONERROR);
return;
}

int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

const WCHAR bom = 0xFEFF;
DWORD bytesWritten;
WriteFile(hFile, &bom, sizeof(WCHAR), &bytesWritten, NULL);

WriteFile(hFile, buffer, len * sizeof(WCHAR), &bytesWritten, NULL);

delete[] buffer;
}

CloseHandle(hFile);

MessageBox(hwnd, L"File saved successfully!", L"Correspondence", MB_OK | MB_ICONINFORMATION);
}
}

void OpenFile(HWND hwnd) {
WCHAR szFileName[MAX_PATH] = L"";

ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;
ofn.lpstrFile = szFileName;
ofn.lpstrFile[0] = L'\0';
ofn.nMaxFile = sizeof(szFileName);
ofn.lpstrFilter = L"Text Files (*.txt)\0*.txt\0All Files (*.*)\0*.*\0";
ofn.nFilterIndex = 1;

if (GetOpenFileName(&ofn) == TRUE) {
HANDLE hFile = CreateFile(szFileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
MessageBox(hwnd, L"Failed to open file!", L"Error", MB_OK | MB_ICONERROR);
return;
}

DWORD dwFileSize = GetFileSize(hFile, NULL);
if (dwFileSize == INVALID_FILE_SIZE) {
CloseHandle(hFile);
MessageBox(hwnd, L"Failed to get file size!", L"Error", MB_OK | MB_ICONERROR);
return;
}

WCHAR* buffer = new WCHAR[dwFileSize / sizeof(WCHAR) + 1];

DWORD bytesRead;
if (ReadFile(hFile, buffer, dwFileSize, &bytesRead, NULL)) {
if (bytesRead >= sizeof(WCHAR) && buffer[0] == 0xFEFF) {
memmove(buffer, buffer + 1, (bytesRead - sizeof(WCHAR)));
bytesRead -= sizeof(WCHAR);
}

buffer[bytesRead / sizeof(WCHAR)] = L'\0';

SetWindowText(hEdit, buffer);
}
else {
MessageBox(hwnd, L"Failed to read file!", L"Error", MB_OK | MB_ICONERROR);
}

delete[] buffer;
CloseHandle(hFile);
}
}

void EncodeText() {
int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

for (int i = 0; i < len; ++i) {
WCHAR originalChar = buffer[i];
WCHAR newChar = originalChar;

switch (originalChar) {
case L'A': case L'a': newChar = L'☉'; break;
case L'B': case L'b': newChar = L'●'; break;
case L'C': case L'c': newChar = L'☾'; break;
case L'D': case L'd': newChar = L'☽'; break;
case L'E': case L'e': newChar = L'○'; break;
case L'F': case L'f': newChar = L'☿'; break;
case L'G': case L'g': newChar = L'♀'; break;
case L'H': case L'h': newChar = L'♁'; break;
case L'I': case L'i': newChar = L'♂'; break;
case L'J': case L'j': newChar = L'♃'; break;
case L'K': case L'k': newChar = L'♄'; break;
case L'L': case L'l': newChar = L'♅'; break;
case L'M': case L'm': newChar = L'♆'; break;
case L'N': case L'n': newChar = L'♇'; break;
case L'O': case L'o': newChar = L'♈'; break;
case L'P': case L'p': newChar = L'♉'; break;
case L'Q': case L'q': newChar = L'♊'; break;
case L'R': case L'r': newChar = L'♋'; break;
case L'S': case L's': newChar = L'♌'; break;
case L'T': case L't': newChar = L'♍'; break;
case L'U': case L'u': newChar = L'♎'; break;
case L'V': case L'v': newChar = L'♏'; break;
case L'W': case L'w': newChar = L'♐'; break;
case L'X': case L'x': newChar = L'♑'; break;
case L'Y': case L'y': newChar = L'♒'; break;
case L'Z': case L'z': newChar = L'♓'; break;
default:
newChar = originalChar;
break;
}

buffer[i] = newChar;
}

SetWindowText(hEdit, buffer);
delete[] buffer;
}

UpdateStatusBar();
}

void DecodeText() {
int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

for (int i = 0; i < len; ++i) {
WCHAR originalChar = buffer[i];
WCHAR newChar = originalChar;

switch (originalChar) {
case L'☉': newChar = L'a'; break;
case L'●': newChar = L'b'; break;
case L'☾': newChar = L'c'; break;
case L'☽': newChar = L'd'; break;
case L'○': newChar = L'e'; break;
case L'☿': newChar = L'f'; break;
case L'♀': newChar = L'g'; break;
case L'♁': newChar = L'h'; break;
case L'♂': newChar = L'i'; break;
case L'♃': newChar = L'j'; break;
case L'♄': newChar = L'k'; break;
case L'♅': newChar = L'l'; break;
case L'♆': newChar = L'm'; break;
case L'♇': newChar = L'n'; break;
case L'♈': newChar = L'o'; break;
case L'♉': newChar = L'p'; break;
case L'♊': newChar = L'q'; break;
case L'♋': newChar = L'r'; break;
case L'♌': newChar = L's'; break;
case L'♍': newChar = L't'; break;
case L'♎': newChar = L'u'; break;
case L'♏': newChar = L'v'; break;
case L'♐': newChar = L'w'; break;
case L'♑': newChar = L'x'; break;
case L'♒': newChar = L'y'; break;
case L'♓': newChar = L'z'; break;
default:
newChar = originalChar;
break;
}

buffer[i] = newChar;
}

SetWindowText(hEdit, buffer);
delete[] buffer;
}

UpdateStatusBar();
}

LRESULT CALLBACK EditSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
switch (uMsg) {
case WM_CHAR: {
bool ctrlPressed = GetKeyState(VK_CONTROL) & 0x8000;

if (ctrlPressed) {
return 0;
}
if (enableSubstitution) {
switch (wParam) {
case 'A': case 'a': wParam = L'☉'; break;
case 'B': case 'b': wParam = L'●'; break;
case 'C': case 'c': wParam = L'☾'; break;
case 'D': case 'd': wParam = L'☽'; break;
case 'E': case 'e': wParam = L'○'; break;
case 'F': case 'f': wParam = L'☿'; break;
case 'G': case 'g': wParam = L'♀'; break;
case 'H': case 'h': wParam = L'♁'; break;
case 'I': case 'i': wParam = L'♂'; break;
case 'J': case 'j': wParam = L'♃'; break;
case 'K': case 'k': wParam = L'♄'; break;
case 'L': case 'l': wParam = L'♅'; break;
case 'M': case 'm': wParam = L'♆'; break;
case 'N': case 'n': wParam = L'♇'; break;
case 'O': case 'o': wParam = L'♈'; break;
case 'P': case 'p': wParam = L'♉'; break;
case 'Q': case 'q': wParam = L'♊'; break;
case 'R': case 'r': wParam = L'♋'; break;
case 'S': case 's': wParam = L'♌'; break;
case 'T': case 't': wParam = L'♍'; break;
case 'U': case 'u': wParam = L'♎'; break;
case 'V': case 'v': wParam = L'♏'; break;
case 'W': case 'w': wParam = L'♐'; break;
case 'X': case 'x': wParam = L'♑'; break;
case 'Y': case 'y': wParam = L'♒'; break;
case 'Z': case 'z': wParam = L'♓'; break;
}
}

break;
}
case WM_KEYDOWN: {
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'E') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_E_ENCODE, 0), (LPARAM)hwnd);
return 0;
}

if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'D') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_D_DECODE, 0), (LPARAM)hwnd);
return 0;
}

if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'T') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_T, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'S') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_FILE_SAVE, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'O') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_FILE_OPEN, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'Q') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_FILE_EXIT, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'A') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_A, 0), (LPARAM)hwnd);
return 0;
}
break;
}
}
return CallWindowProc(OldEditProc, hwnd, uMsg, wParam, lParam);
}


LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
switch (uMsg) {
case WM_CREATE: {
hEdit = CreateWindowExW(
0, L"EDIT", L"",
WS_CHILD | WS_VISIBLE | WS_VSCROLL | WS_HSCROLL |
ES_LEFT | ES_MULTILINE | ES_AUTOVSCROLL | ES_AUTOHSCROLL,
0, 0, 0, 0,
hwnd, (HMENU)1, GetModuleHandle(NULL), NULL);
if (hEdit == NULL) {
MessageBox(hwnd, L"Could not create edit box.", L"Error", MB_OK | MB_ICONERROR);
return -1;
}

hFont = CreateFontW(
32, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE,
DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY,
DEFAULT_PITCH | FF_SWISS, L"Segoe UI Symbol");
SendMessage(hEdit, WM_SETFONT, (WPARAM)hFont, TRUE);

OldEditProc = (WNDPROC)SetWindowLongPtr(hEdit, GWLP_WNDPROC, (LONG_PTR)EditSubclassProc);

hStatusBar = CreateWindowExW(
0, STATUSCLASSNAME, NULL,
WS_CHILD | WS_VISIBLE | SBARS_SIZEGRIP,
0, 0, 0, 0,
hwnd, (HMENU)ID_STATUSBAR, GetModuleHandle(NULL), NULL);

int statusParts[] = { 200, -1 };
SendMessage(hStatusBar, SB_SETPARTS, sizeof(statusParts) / sizeof(int), (LPARAM)&statusParts);

UpdateStatusBar();
break;
}
case WM_SIZE: {
RECT rcClient;
GetClientRect(hwnd, &rcClient);
SetWindowPos(hEdit, NULL, 0, 0, rcClient.right, rcClient.bottom - 20, SWP_NOZORDER);
SetWindowPos(hStatusBar, NULL, 0, rcClient.bottom - 20, rcClient.right, 20, SWP_NOZORDER);
break;
}
case WM_COMMAND: {
int wmId = LOWORD(wParam);
switch (wmId) {
case ID_FILE_SAVE:
SaveFile(hwnd);
break;
case ID_FILE_OPEN:
OpenFile(hwnd);
break;
case ID_TOGGLE_SUBSTITUTION:
enableSubstitution = !enableSubstitution;
UpdateStatusBar();
break;
case ID_CODE_ENCODE:
SendMessage(hEdit, WM_CUT, 0, 0);
if (OpenClipboard(hwnd)) {
HANDLE hClipboardData = GetClipboardData(CF_UNICODETEXT);
if (hClipboardData != NULL) {
WCHAR* pszData = static_cast<WCHAR*>(GlobalLock(hClipboardData));
if (pszData != NULL) {

size_t length = wcslen(pszData);
WCHAR* pszModifiedData = new WCHAR[length + 1];
if (pszModifiedData != NULL) {
for (size_t i = 0; i < length; ++i) {
if (pszData[i] == L'a' || pszData[i] == L'A') {
pszModifiedData[i] = L'☉';
}
else if (pszData[i] == L'b' || pszData[i] == L'B') {
pszModifiedData[i] = L'●';
}
else if (pszData[i] == L'c' || pszData[i] == L'C') {
pszModifiedData[i] = L'☾';
}
else if (pszData[i] == L'd' || pszData[i] == L'D') {
pszModifiedData[i] = L'☽';
}
else if (pszData[i] == L'e' || pszData[i] == L'E') {
pszModifiedData[i] = L'○';
}
else if (pszData[i] == L'f' || pszData[i] == L'F') {
pszModifiedData[i] = L'☿';
}
else if (pszData[i] == L'g' || pszData[i] == L'G') {
pszModifiedData[i] = L'♀';
}
else if (pszData[i] == L'h' || pszData[i] == L'H') {
pszModifiedData[i] = L'♁';
}
else if (pszData[i] == L'i' || pszData[i] == L'I') {
pszModifiedData[i] = L'♂';
}
else if (pszData[i] == L'j' || pszData[i] == L'J') {
pszModifiedData[i] = L'♃';
}
else if (pszData[i] == L'k' || pszData[i] == L'K') {
pszModifiedData[i] = L'♄';
}
else if (pszData[i] == L'l' || pszData[i] == L'L') {
pszModifiedData[i] = L'♅';
}
else if (pszData[i] == L'm' || pszData[i] == L'M') {
pszModifiedData[i] = L'♆';
}
else if (pszData[i] == L'n' || pszData[i] == L'N') {
pszModifiedData[i] = L'♇';
}
else if (pszData[i] == L'o' || pszData[i] == L'O') {
pszModifiedData[i] = L'♈';
}
else if (pszData[i] == L'p' || pszData[i] == L'P') {
pszModifiedData[i] = L'♉';
}
else if (pszData[i] == L'q' || pszData[i] == L'Q') {
pszModifiedData[i] = L'♊';
}
else if (pszData[i] == L'r' || pszData[i] == L'R') {
pszModifiedData[i] = L'♋';
}
else if (pszData[i] == L's' || pszData[i] == L'S') {
pszModifiedData[i] = L'♌';
}
else if (pszData[i] == L't' || pszData[i] == L'T') {
pszModifiedData[i] = L'♍';
}
else if (pszData[i] == L'u' || pszData[i] == L'U') {
pszModifiedData[i] = L'♎';
}
else if (pszData[i] == L'v' || pszData[i] == L'V') {
pszModifiedData[i] = L'♏';
}
else if (pszData[i] == L'w' || pszData[i] == L'W') {
pszModifiedData[i] = L'♐';
}
else if (pszData[i] == L'x' || pszData[i] == L'X') {
pszModifiedData[i] = L'♑';
}
else if (pszData[i] == L'y' || pszData[i] == L'Y') {
pszModifiedData[i] = L'♒';
}
else if (pszData[i] == L'z' || pszData[i] == L'Z') {
pszModifiedData[i] = L'♓';
}
else {
pszModifiedData[i] = pszData[i];
}
}
pszModifiedData[length] = L'\0';


EmptyClipboard();


HANDLE hNewData = GlobalAlloc(GMEM_MOVEABLE, (length + 1) * sizeof(WCHAR));
if (hNewData != NULL) {
WCHAR* pszNewData = static_cast<WCHAR*>(GlobalLock(hNewData));
if (pszNewData != NULL) {
wcscpy_s(pszNewData, length + 1, pszModifiedData);
GlobalUnlock(hNewData);


SetClipboardData(CF_UNICODETEXT, hNewData);
}
else {
GlobalFree(hNewData);
}
}

delete[] pszModifiedData;
}
GlobalUnlock(hClipboardData);
}
}

CloseClipboard();
}
SendMessage(hEdit, WM_PASTE, 0, 0);
break;

case ID_CODE_DECODE:
SendMessage(hEdit, WM_CUT, 0, 0);
if (OpenClipboard(hwnd)) {
HANDLE hClipboardData = GetClipboardData(CF_UNICODETEXT);
if (hClipboardData != NULL) {
WCHAR* pszData = static_cast<WCHAR*>(GlobalLock(hClipboardData));
if (pszData != NULL) {

size_t length = wcslen(pszData);
WCHAR* pszModifiedData = new WCHAR[length + 1];
if (pszModifiedData != NULL) {
for (size_t i = 0; i < length; ++i) {
if (pszData[i] == L'☉') {
pszModifiedData[i] = L'a';
}
else if (pszData[i] == L'●') {
pszModifiedData[i] = L'b';
}
else if (pszData[i] == L'☾') {
pszModifiedData[i] = L'c';
}
else if (pszData[i] == L'☽') {
pszModifiedData[i] = L'd';
}
else if (pszData[i] == L'○') {
pszModifiedData[i] = L'e';
}
else if (pszData[i] == L'☿') {
pszModifiedData[i] = L'f';
}
else if (pszData[i] == L'♀') {
pszModifiedData[i] = L'g';
}
else if (pszData[i] == L'♁') {
pszModifiedData[i] = L'h';
}
else if (pszData[i] == L'♂') {
pszModifiedData[i] = L'i';
}
else if (pszData[i] == L'♃') {
pszModifiedData[i] = L'j';
}
else if (pszData[i] == L'♄') {
pszModifiedData[i] = L'k';
}
else if (pszData[i] == L'♅') {
pszModifiedData[i] = L'l';
}
else if (pszData[i] == L'♆') {
pszModifiedData[i] = L'm';
}
else if (pszData[i] == L'♇') {
pszModifiedData[i] = L'n';
}
else if (pszData[i] == L'♈') {
pszModifiedData[i] = L'o';
}
else if (pszData[i] == L'♉') {
pszModifiedData[i] = L'p';
}
else if (pszData[i] == L'♊') {
pszModifiedData[i] = L'q';
}
else if (pszData[i] == L'♋') {
pszModifiedData[i] = L'r';
}
else if (pszData[i] == L'♌') {
pszModifiedData[i] = L's';
}
else if (pszData[i] == L'♍') {
pszModifiedData[i] = L't';
}
else if (pszData[i] == L'♎') {
pszModifiedData[i] = L'u';
}
else if (pszData[i] == L'♏') {
pszModifiedData[i] = L'v';
}
else if (pszData[i] == L'♐') {
pszModifiedData[i] = L'w';
}
else if (pszData[i] == L'♑') {
pszModifiedData[i] = L'x';
}
else if (pszData[i] == L'♒') {
pszModifiedData[i] = L'y';
}
else if (pszData[i] == L'♓') {
pszModifiedData[i] = L'z';
}

else {
pszModifiedData[i] = pszData[i];
}
}
pszModifiedData[length] = L'\0';

EmptyClipboard();

HANDLE hNewData = GlobalAlloc(GMEM_MOVEABLE, (length + 1) * sizeof(WCHAR));
if (hNewData != NULL) {
WCHAR* pszNewData = static_cast<WCHAR*>(GlobalLock(hNewData));
if (pszNewData != NULL) {
wcscpy_s(pszNewData, length + 1, pszModifiedData);
GlobalUnlock(hNewData);


SetClipboardData(CF_UNICODETEXT, hNewData);
}
else {
GlobalFree(hNewData);
}
}

delete[] pszModifiedData;
}
GlobalUnlock(hClipboardData);
}
}

CloseClipboard();
}
SendMessage(hEdit, WM_PASTE, 0, 0);
break;

case ID_EDIT_CUT: {
SendMessage(hEdit, WM_CUT, 0, 0);
break;
}
case ID_EDIT_COPY: {
SendMessage(hEdit, WM_COPY, 0, 0);
break;
}
case ID_EDIT_PASTE: {
SendMessage(hEdit, WM_PASTE, 0, 0);
break;
}
case ID_CTRL_D_DECODE: {
SendMessage(hwnd, WM_COMMAND, MAKEWPARAM(ID_CODE_DECODE, 0), 0);
break;
}
case ID_CTRL_E_ENCODE: {
SendMessage(hwnd, WM_COMMAND, MAKEWPARAM(ID_CODE_ENCODE, 0), 0);
break;
}
case ID_CTRL_T: {
enableSubstitution = !enableSubstitution;
UpdateStatusBar();
break;
}
case ID_CTRL_A: {
int textLength = GetWindowTextLength(hEdit);
SendMessage(hEdit, EM_SETSEL, 0, textLength);
break;
}
case ID_FILE_EXIT:
DestroyWindow(hwnd);
break;
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
break;
}
case WM_DESTROY: {
if (hFont) {
DeleteObject(hFont);
}
PostQuitMessage(0);
break;
}
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
return 0;
}

int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PWSTR pCmdLine, int nCmdShow) {
INITCOMMONCONTROLSEX iccex;
iccex.dwSize = sizeof(iccex);
iccex.dwICC = ICC_WIN95_CLASSES;
InitCommonControlsEx(&iccex);

WNDCLASS wc = {};
wc.lpfnWndProc = WindowProc;
wc.hInstance = hInstance;
wc.lpszClassName = CLASS_NAME;

RegisterClass(&wc);

HWND hwnd = CreateWindowExW(
0, CLASS_NAME, WINDOW_TITLE,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT, 800, 600,
NULL, NULL, hInstance, NULL);

if (hwnd == NULL) {
return 0;
}

HMENU hMenu = CreateMenu();
HMENU hSubMenuFile = CreatePopupMenu();
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_OPEN, L"&Open - Ctrl + O");
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_SAVE, L"&Save - Ctrl + S");
AppendMenu(hSubMenuFile, MF_SEPARATOR, 0, NULL);
AppendMenu(hSubMenuFile, MF_SEPARATOR, 0, NULL);
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_EXIT, L"E&xit - Ctrl + Q");

HMENU hSubMenuCode = CreatePopupMenu();
AppendMenu(hSubMenuCode, MF_STRING, ID_CODE_ENCODE, L"&Encode - Ctrl + E");
AppendMenu(hSubMenuCode, MF_STRING, ID_CODE_DECODE, L"&Decode - Ctrl + D");
AppendMenu(hSubMenuCode, MF_STRING, ID_TOGGLE_SUBSTITUTION, L"&Toggle - Ctrl + T");

HMENU hSubMenuEdit = CreatePopupMenu();
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_CUT, L"&Cut - Ctrl + X");
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_COPY, L"&Copy - Ctrl + C");
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_PASTE, L"&Paste - Ctrl + V");

AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenuFile, L"&File");
AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenuEdit, L"&Edit");
AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenuCode, L"&Code");


SetMenu(hwnd, hMenu);

ShowWindow(hwnd, nCmdShow);
UpdateWindow(hwnd);

MSG msg = {};
while (GetMessage(&msg, NULL, 0, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}

return msg.wParam;
}

[Corey White]

Minor updates to edit functions.
still at: https://github.com/alt-magick/Correspondence

#include <windows.h>
#include <commctrl.h>
#include <commdlg.h>
#include <string>

#define ID_FILE_SAVE 1001
#define ID_FILE_EXIT 1002
#define ID_FILE_OPEN 1003
#define ID_TOGGLE_SUBSTITUTION 1004
#define ID_CODE_ENCODE 1005
#define ID_CODE_DECODE 1006
#define ID_STATUSBAR 1007
#define ID_EDIT_CUT 1008
#define ID_EDIT_COPY 1009
#define ID_EDIT_PASTE 1010
#define ID_EDIT_DELETE 1011
#define ID_EDIT_UNDO 1012
#define ID_EDIT_ALL 1013
#define ID_CTRL_E_ENCODE 1014
#define ID_CTRL_D_DECODE 1015
#define ID_CTRL_T 1016
#define ID_CTRL_S 1017
#define ID_CTRL_O 1018
#define ID_CTRL_Q 1019
#define ID_CTRL_A 1020
#define ID_CTRL_Z 1021
#define ID_CTRL_A 1022

#pragma comment(lib, "user32.lib")
#pragma comment(lib, "comctl32.lib")
#pragma comment(linker, "/SUBSYSTEM:WINDOWS /ENTRY:wWinMainCRTStartup")

const wchar_t CLASS_NAME[] = L"Correspondence";
const wchar_t WINDOW_TITLE[] = L"Correspondence";

HWND hEdit;
HWND hStatusBar;
WNDPROC OldEditProc;
HFONT hFont;
OPENFILENAME ofn;
bool enableSubstitution = false;

void SaveFile(HWND hwnd);
void OpenFile(HWND hwnd);
void EncodeText();
void DecodeText();

void SelectAllText(HWND hwndEdit) {

int textLength = GetWindowTextLength(hwndEdit);
SendMessage(hwndEdit, EM_SETSEL, 0, textLength);
}

void UpdateStatusBar() {
int index = 0;
const int bufferSize = 256;
wchar_t statusText[bufferSize];
swprintf_s(statusText, bufferSize, L"Code %s", enableSubstitution ? L"Enabled" : L"Disabled");
SendMessage(hStatusBar, SB_SETTEXT, index, (LPARAM)statusText);
}

void SaveFile(HWND hwnd) {
WCHAR szFileName[MAX_PATH] = L"";

ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;
ofn.lpstrFile = szFileName;
ofn.lpstrFile[0] = L'\0';
ofn.nMaxFile = sizeof(szFileName);
ofn.lpstrFilter = L"Text Files (*.txt)\0*.txt\0All Files (*.*)\0*.*\0";
ofn.nFilterIndex = 1;

if (GetSaveFileName(&ofn) == TRUE) {
HANDLE hFile = CreateFile(szFileName, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
MessageBox(hwnd, L"Failed to create file!", L"Error", MB_OK | MB_ICONERROR);
return;
}

int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

const WCHAR bom = 0xFEFF;
DWORD bytesWritten;
WriteFile(hFile, &bom, sizeof(WCHAR), &bytesWritten, NULL);

WriteFile(hFile, buffer, len * sizeof(WCHAR), &bytesWritten, NULL);

delete[] buffer;
}

CloseHandle(hFile);

MessageBox(hwnd, L"File saved successfully!", L"Correspondence", MB_OK | MB_ICONINFORMATION);
}
}

void OpenFile(HWND hwnd) {
WCHAR szFileName[MAX_PATH] = L"";

ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;
ofn.lpstrFile = szFileName;
ofn.lpstrFile[0] = L'\0';
ofn.nMaxFile = sizeof(szFileName);
ofn.lpstrFilter = L"Text Files (*.txt)\0*.txt\0All Files (*.*)\0*.*\0";
ofn.nFilterIndex = 1;

if (GetOpenFileName(&ofn) == TRUE) {
HANDLE hFile = CreateFile(szFileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
MessageBox(hwnd, L"Failed to open file!", L"Error", MB_OK | MB_ICONERROR);
return;
}

DWORD dwFileSize = GetFileSize(hFile, NULL);
if (dwFileSize == INVALID_FILE_SIZE) {
CloseHandle(hFile);
MessageBox(hwnd, L"Failed to get file size!", L"Error", MB_OK | MB_ICONERROR);
return;
}

WCHAR* buffer = new WCHAR[dwFileSize / sizeof(WCHAR) + 1];

DWORD bytesRead;
if (ReadFile(hFile, buffer, dwFileSize, &bytesRead, NULL)) {
if (bytesRead >= sizeof(WCHAR) && buffer[0] == 0xFEFF) {
memmove(buffer, buffer + 1, (bytesRead - sizeof(WCHAR)));
bytesRead -= sizeof(WCHAR);
}

buffer[bytesRead / sizeof(WCHAR)] = L'\0';

SetWindowText(hEdit, buffer);
}
else {
MessageBox(hwnd, L"Failed to read file!", L"Error", MB_OK | MB_ICONERROR);
}

delete[] buffer;
CloseHandle(hFile);
}
}

void EncodeText() {
int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

for (int i = 0; i < len; ++i) {
WCHAR originalChar = buffer[i];
WCHAR newChar = originalChar;

switch (originalChar) {
case L'A': case L'a': newChar = L'☉'; break;
case L'B': case L'b': newChar = L'●'; break;
case L'C': case L'c': newChar = L'☾'; break;
case L'D': case L'd': newChar = L'☽'; break;
case L'E': case L'e': newChar = L'○'; break;
case L'F': case L'f': newChar = L'☿'; break;
case L'G': case L'g': newChar = L'♀'; break;
case L'H': case L'h': newChar = L'♁'; break;
case L'I': case L'i': newChar = L'♂'; break;
case L'J': case L'j': newChar = L'♃'; break;
case L'K': case L'k': newChar = L'♄'; break;
case L'L': case L'l': newChar = L'♅'; break;
case L'M': case L'm': newChar = L'♆'; break;
case L'N': case L'n': newChar = L'♇'; break;
case L'O': case L'o': newChar = L'♈'; break;
case L'P': case L'p': newChar = L'♉'; break;
case L'Q': case L'q': newChar = L'♊'; break;
case L'R': case L'r': newChar = L'♋'; break;
case L'S': case L's': newChar = L'♌'; break;
case L'T': case L't': newChar = L'♍'; break;
case L'U': case L'u': newChar = L'♎'; break;
case L'V': case L'v': newChar = L'♏'; break;
case L'W': case L'w': newChar = L'♐'; break;
case L'X': case L'x': newChar = L'♑'; break;
case L'Y': case L'y': newChar = L'♒'; break;
case L'Z': case L'z': newChar = L'♓'; break;
default:
newChar = originalChar;
break;
}

buffer[i] = newChar;
}

SetWindowText(hEdit, buffer);
delete[] buffer;
}

UpdateStatusBar();
}

void DecodeText() {
int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

for (int i = 0; i < len; ++i) {
WCHAR originalChar = buffer[i];
WCHAR newChar = originalChar;

switch (originalChar) {
case L'☉': newChar = L'a'; break;
case L'●': newChar = L'b'; break;
case L'☾': newChar = L'c'; break;
case L'☽': newChar = L'd'; break;
case L'○': newChar = L'e'; break;
case L'☿': newChar = L'f'; break;
case L'♀': newChar = L'g'; break;
case L'♁': newChar = L'h'; break;
case L'♂': newChar = L'i'; break;
case L'♃': newChar = L'j'; break;
case L'♄': newChar = L'k'; break;
case L'♅': newChar = L'l'; break;
case L'♆': newChar = L'm'; break;
case L'♇': newChar = L'n'; break;
case L'♈': newChar = L'o'; break;
case L'♉': newChar = L'p'; break;
case L'♊': newChar = L'q'; break;
case L'♋': newChar = L'r'; break;
case L'♌': newChar = L's'; break;
case L'♍': newChar = L't'; break;
case L'♎': newChar = L'u'; break;
case L'♏': newChar = L'v'; break;
case L'♐': newChar = L'w'; break;
case L'♑': newChar = L'x'; break;
case L'♒': newChar = L'y'; break;
case L'♓': newChar = L'z'; break;
default:
newChar = originalChar;
break;
}

buffer[i] = newChar;
}

SetWindowText(hEdit, buffer);
delete[] buffer;
}

UpdateStatusBar();
}

LRESULT CALLBACK EditSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
switch (uMsg) {
case WM_CHAR: {
bool ctrlPressed = GetKeyState(VK_CONTROL) & 0x8000;

if (ctrlPressed) {
return 0;
}
if (enableSubstitution) {
switch (wParam) {
case 'A': case 'a': wParam = L'☉'; break;
case 'B': case 'b': wParam = L'●'; break;
case 'C': case 'c': wParam = L'☾'; break;
case 'D': case 'd': wParam = L'☽'; break;
case 'E': case 'e': wParam = L'○'; break;
case 'F': case 'f': wParam = L'☿'; break;
case 'G': case 'g': wParam = L'♀'; break;
case 'H': case 'h': wParam = L'♁'; break;
case 'I': case 'i': wParam = L'♂'; break;
case 'J': case 'j': wParam = L'♃'; break;
case 'K': case 'k': wParam = L'♄'; break;
case 'L': case 'l': wParam = L'♅'; break;
case 'M': case 'm': wParam = L'♆'; break;
case 'N': case 'n': wParam = L'♇'; break;
case 'O': case 'o': wParam = L'♈'; break;
case 'P': case 'p': wParam = L'♉'; break;
case 'Q': case 'q': wParam = L'♊'; break;
case 'R': case 'r': wParam = L'♋'; break;
case 'S': case 's': wParam = L'♌'; break;
case 'T': case 't': wParam = L'♍'; break;
case 'U': case 'u': wParam = L'♎'; break;
case 'V': case 'v': wParam = L'♏'; break;
case 'W': case 'w': wParam = L'♐'; break;
case 'X': case 'x': wParam = L'♑'; break;
case 'Y': case 'y': wParam = L'♒'; break;
case 'Z': case 'z': wParam = L'♓'; break;
}
}

break;
}
case WM_KEYDOWN: {
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'E') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_E_ENCODE, 0), (LPARAM)hwnd);
return 0;
}

if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'D') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_D_DECODE, 0), (LPARAM)hwnd);
return 0;
}

if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'T') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_T, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'S') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_FILE_SAVE, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'O') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_FILE_OPEN, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'Q') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_FILE_EXIT, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'A') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_A, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'Z') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_Z, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'A') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_A, 0), (LPARAM)hwnd);
return 0;
}
break;
}
}
return CallWindowProc(OldEditProc, hwnd, uMsg, wParam, lParam);
}


LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
switch (uMsg) {
case WM_CREATE: {
hEdit = CreateWindowExW(
0, L"EDIT", L"",
WS_CHILD | WS_VISIBLE | WS_VSCROLL | WS_HSCROLL |
ES_LEFT | ES_MULTILINE | ES_AUTOVSCROLL | ES_AUTOHSCROLL,
0, 0, 0, 0,
hwnd, (HMENU)1, GetModuleHandle(NULL), NULL);
if (hEdit == NULL) {
MessageBox(hwnd, L"Could not create edit box.", L"Error", MB_OK | MB_ICONERROR);
return -1;
}

hFont = CreateFontW(
32, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE,
DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY,
DEFAULT_PITCH | FF_SWISS, L"Segoe UI Symbol");
SendMessage(hEdit, WM_SETFONT, (WPARAM)hFont, TRUE);

OldEditProc = (WNDPROC)SetWindowLongPtr(hEdit, GWLP_WNDPROC, (LONG_PTR)EditSubclassProc);

hStatusBar = CreateWindowExW(
0, STATUSCLASSNAME, NULL,
WS_CHILD | WS_VISIBLE | SBARS_SIZEGRIP,
0, 0, 0, 0,
hwnd, (HMENU)ID_STATUSBAR, GetModuleHandle(NULL), NULL);

int statusParts[] = { 200, -1 };
SendMessage(hStatusBar, SB_SETPARTS, sizeof(statusParts) / sizeof(int), (LPARAM)&statusParts);

UpdateStatusBar();
break;
}
case WM_SIZE: {
RECT rcClient;
GetClientRect(hwnd, &rcClient);
SetWindowPos(hEdit, NULL, 0, 0, rcClient.right, rcClient.bottom - 20, SWP_NOZORDER);
SetWindowPos(hStatusBar, NULL, 0, rcClient.bottom - 20, rcClient.right, 20, SWP_NOZORDER);
break;
}
case WM_COMMAND: {
int wmId = LOWORD(wParam);
switch (wmId) {
case ID_FILE_SAVE:
SaveFile(hwnd);
break;
case ID_FILE_OPEN:
OpenFile(hwnd);
break;
case ID_TOGGLE_SUBSTITUTION:
enableSubstitution = !enableSubstitution;
UpdateStatusBar();
break;
case ID_CODE_ENCODE:
SendMessage(hEdit, WM_CUT, 0, 0);
if (OpenClipboard(hwnd)) {
HANDLE hClipboardData = GetClipboardData(CF_UNICODETEXT);
if (hClipboardData != NULL) {
WCHAR* pszData = static_cast<WCHAR*>(GlobalLock(hClipboardData));
if (pszData != NULL) {

size_t length = wcslen(pszData);
WCHAR* pszModifiedData = new WCHAR[length + 1];
if (pszModifiedData != NULL) {
for (size_t i = 0; i < length; ++i) {
if (pszData[i] == L'a' || pszData[i] == L'A') {
pszModifiedData[i] = L'☉';
}
else if (pszData[i] == L'b' || pszData[i] == L'B') {
pszModifiedData[i] = L'●';
}
else if (pszData[i] == L'c' || pszData[i] == L'C') {
pszModifiedData[i] = L'☾';
}
else if (pszData[i] == L'd' || pszData[i] == L'D') {
pszModifiedData[i] = L'☽';
}
else if (pszData[i] == L'e' || pszData[i] == L'E') {
pszModifiedData[i] = L'○';
}
else if (pszData[i] == L'f' || pszData[i] == L'F') {
pszModifiedData[i] = L'☿';
}
else if (pszData[i] == L'g' || pszData[i] == L'G') {
pszModifiedData[i] = L'♀';
}
else if (pszData[i] == L'h' || pszData[i] == L'H') {
pszModifiedData[i] = L'♁';
}
else if (pszData[i] == L'i' || pszData[i] == L'I') {
pszModifiedData[i] = L'♂';
}
else if (pszData[i] == L'j' || pszData[i] == L'J') {
pszModifiedData[i] = L'♃';
}
else if (pszData[i] == L'k' || pszData[i] == L'K') {
pszModifiedData[i] = L'♄';
}
else if (pszData[i] == L'l' || pszData[i] == L'L') {
pszModifiedData[i] = L'♅';
}
else if (pszData[i] == L'm' || pszData[i] == L'M') {
pszModifiedData[i] = L'♆';
}
else if (pszData[i] == L'n' || pszData[i] == L'N') {
pszModifiedData[i] = L'♇';
}
else if (pszData[i] == L'o' || pszData[i] == L'O') {
pszModifiedData[i] = L'♈';
}
else if (pszData[i] == L'p' || pszData[i] == L'P') {
pszModifiedData[i] = L'♉';
}
else if (pszData[i] == L'q' || pszData[i] == L'Q') {
pszModifiedData[i] = L'♊';
}
else if (pszData[i] == L'r' || pszData[i] == L'R') {
pszModifiedData[i] = L'♋';
}
else if (pszData[i] == L's' || pszData[i] == L'S') {
pszModifiedData[i] = L'♌';
}
else if (pszData[i] == L't' || pszData[i] == L'T') {
pszModifiedData[i] = L'♍';
}
else if (pszData[i] == L'u' || pszData[i] == L'U') {
pszModifiedData[i] = L'♎';
}
else if (pszData[i] == L'v' || pszData[i] == L'V') {
pszModifiedData[i] = L'♏';
}
else if (pszData[i] == L'w' || pszData[i] == L'W') {
pszModifiedData[i] = L'♐';
}
else if (pszData[i] == L'x' || pszData[i] == L'X') {
pszModifiedData[i] = L'♑';
}
else if (pszData[i] == L'y' || pszData[i] == L'Y') {
pszModifiedData[i] = L'♒';
}
else if (pszData[i] == L'z' || pszData[i] == L'Z') {
pszModifiedData[i] = L'♓';
}
else {
pszModifiedData[i] = pszData[i];
}
}
pszModifiedData[length] = L'\0';


EmptyClipboard();


HANDLE hNewData = GlobalAlloc(GMEM_MOVEABLE, (length + 1) * sizeof(WCHAR));
if (hNewData != NULL) {
WCHAR* pszNewData = static_cast<WCHAR*>(GlobalLock(hNewData));
if (pszNewData != NULL) {
wcscpy_s(pszNewData, length + 1, pszModifiedData);
GlobalUnlock(hNewData);


SetClipboardData(CF_UNICODETEXT, hNewData);
}
else {
GlobalFree(hNewData);
}
}

delete[] pszModifiedData;
}
GlobalUnlock(hClipboardData);
}
}

CloseClipboard();
}
SendMessage(hEdit, WM_PASTE, 0, 0);
break;

case ID_CODE_DECODE:
SendMessage(hEdit, WM_CUT, 0, 0);
if (OpenClipboard(hwnd)) {
HANDLE hClipboardData = GetClipboardData(CF_UNICODETEXT);
if (hClipboardData != NULL) {
WCHAR* pszData = static_cast<WCHAR*>(GlobalLock(hClipboardData));
if (pszData != NULL) {

size_t length = wcslen(pszData);
WCHAR* pszModifiedData = new WCHAR[length + 1];
if (pszModifiedData != NULL) {
for (size_t i = 0; i < length; ++i) {
if (pszData[i] == L'☉') {
pszModifiedData[i] = L'a';
}
else if (pszData[i] == L'●') {
pszModifiedData[i] = L'b';
}
else if (pszData[i] == L'☾') {
pszModifiedData[i] = L'c';
}
else if (pszData[i] == L'☽') {
pszModifiedData[i] = L'd';
}
else if (pszData[i] == L'○') {
pszModifiedData[i] = L'e';
}
else if (pszData[i] == L'☿') {
pszModifiedData[i] = L'f';
}
else if (pszData[i] == L'♀') {
pszModifiedData[i] = L'g';
}
else if (pszData[i] == L'♁') {
pszModifiedData[i] = L'h';
}
else if (pszData[i] == L'♂') {
pszModifiedData[i] = L'i';
}
else if (pszData[i] == L'♃') {
pszModifiedData[i] = L'j';
}
else if (pszData[i] == L'♄') {
pszModifiedData[i] = L'k';
}
else if (pszData[i] == L'♅') {
pszModifiedData[i] = L'l';
}
else if (pszData[i] == L'♆') {
pszModifiedData[i] = L'm';
}
else if (pszData[i] == L'♇') {
pszModifiedData[i] = L'n';
}
else if (pszData[i] == L'♈') {
pszModifiedData[i] = L'o';
}
else if (pszData[i] == L'♉') {
pszModifiedData[i] = L'p';
}
else if (pszData[i] == L'♊') {
pszModifiedData[i] = L'q';
}
else if (pszData[i] == L'♋') {
pszModifiedData[i] = L'r';
}
else if (pszData[i] == L'♌') {
pszModifiedData[i] = L's';
}
else if (pszData[i] == L'♍') {
pszModifiedData[i] = L't';
}
else if (pszData[i] == L'♎') {
pszModifiedData[i] = L'u';
}
else if (pszData[i] == L'♏') {
pszModifiedData[i] = L'v';
}
else if (pszData[i] == L'♐') {
pszModifiedData[i] = L'w';
}
else if (pszData[i] == L'♑') {
pszModifiedData[i] = L'x';
}
else if (pszData[i] == L'♒') {
pszModifiedData[i] = L'y';
}
else if (pszData[i] == L'♓') {
pszModifiedData[i] = L'z';
}

else {
pszModifiedData[i] = pszData[i];
}
}
pszModifiedData[length] = L'\0';

EmptyClipboard();

HANDLE hNewData = GlobalAlloc(GMEM_MOVEABLE, (length + 1) * sizeof(WCHAR));
if (hNewData != NULL) {
WCHAR* pszNewData = static_cast<WCHAR*>(GlobalLock(hNewData));
if (pszNewData != NULL) {
wcscpy_s(pszNewData, length + 1, pszModifiedData);
GlobalUnlock(hNewData);


SetClipboardData(CF_UNICODETEXT, hNewData);
}
else {
GlobalFree(hNewData);
}
}

delete[] pszModifiedData;
}
GlobalUnlock(hClipboardData);
}
}

CloseClipboard();
}
SendMessage(hEdit, WM_PASTE, 0, 0);
break;

case ID_EDIT_CUT: {
SendMessage(hEdit, WM_CUT, 0, 0);
break;
}
case ID_EDIT_COPY: {
SendMessage(hEdit, WM_COPY, 0, 0);
break;
}
case ID_EDIT_PASTE: {
SendMessage(hEdit, WM_PASTE, 0, 0);
break;
}
case ID_EDIT_UNDO: {
SendMessage(hEdit, WM_UNDO, 0, 0);
break;
}
case ID_EDIT_ALL: {
SendMessage(hEdit, EM_SETSEL, 0, -1);
SendMessage(hEdit, WM_COPY, 0, 0);
break;
}
case ID_EDIT_DELETE: {
DWORD start, end;
SendMessage(hEdit, EM_GETSEL, reinterpret_cast<WPARAM>(&start), reinterpret_cast<LPARAM>(&end));

if (start != end) {
SendMessage(hEdit, EM_REPLACESEL, TRUE, reinterpret_cast<LPARAM>(TEXT("")));
}
else {
SendMessage(hEdit, EM_SETSEL, start, end + 1);
SendMessage(hEdit, EM_REPLACESEL, TRUE, reinterpret_cast<LPARAM>(TEXT("")));
}
break;
}
case ID_CTRL_D_DECODE: {
SendMessage(hwnd, WM_COMMAND, MAKEWPARAM(ID_CODE_DECODE, 0), 0);
break;
}
case ID_CTRL_E_ENCODE: {
SendMessage(hwnd, WM_COMMAND, MAKEWPARAM(ID_CODE_ENCODE, 0), 0);
break;
}

case ID_CTRL_Z: {
;
SendMessage(hEdit, EM_UNDO, 0, 0);
break;
}
case ID_CTRL_T: {
enableSubstitution = !enableSubstitution;
UpdateStatusBar();
break;
}
case ID_CTRL_A: {
int textLength = GetWindowTextLength(hEdit);
SendMessage(hEdit, EM_SETSEL, 0, textLength);
break;
}
case ID_FILE_EXIT:
DestroyWindow(hwnd);
break;
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
break;
}
case WM_DESTROY: {
if (hFont) {
DeleteObject(hFont);
}
PostQuitMessage(0);
break;
}
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
return 0;
}

int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PWSTR pCmdLine, int nCmdShow) {
INITCOMMONCONTROLSEX iccex;
iccex.dwSize = sizeof(iccex);
iccex.dwICC = ICC_WIN95_CLASSES;
InitCommonControlsEx(&iccex);

WNDCLASS wc = {};
wc.lpfnWndProc = WindowProc;
wc.hInstance = hInstance;
wc.lpszClassName = CLASS_NAME;

RegisterClass(&wc);

HWND hwnd = CreateWindowExW(
0, CLASS_NAME, WINDOW_TITLE,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT, 800, 600,
NULL, NULL, hInstance, NULL);

if (hwnd == NULL) {
return 0;
}

HMENU hMenu = CreateMenu();
HMENU hSubMenuFile = CreatePopupMenu();
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_OPEN, L"&Open - Ctrl + O");
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_SAVE, L"&Save - Ctrl + S");
AppendMenu(hSubMenuFile, MF_SEPARATOR, 0, NULL);
AppendMenu(hSubMenuFile, MF_SEPARATOR, 0, NULL);
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_EXIT, L"E&xit - Ctrl + Q");

HMENU hSubMenuCode = CreatePopupMenu();
AppendMenu(hSubMenuCode, MF_STRING, ID_CODE_ENCODE, L"&Encode - Ctrl + E");
AppendMenu(hSubMenuCode, MF_STRING, ID_CODE_DECODE, L"&Decode - Ctrl + D");
AppendMenu(hSubMenuCode, MF_STRING, ID_TOGGLE_SUBSTITUTION, L"&Toggle - Ctrl + T");

HMENU hSubMenuEdit = CreatePopupMenu();
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_UNDO, L"&Undo - Ctrl + Z");
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_DELETE, L"&Delete - Del");
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_CUT, L"&Cut - Ctrl + X");
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_COPY, L"&Copy - Ctrl + C");
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_PASTE, L"&Paste - Ctrl + V");
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_ALL, L"&Select All - Ctrl + A");

AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenuFile, L"&File");
AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenuEdit, L"&Edit");
AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenuCode, L"&Code");


SetMenu(hwnd, hMenu);

ShowWindow(hwnd, nCmdShow);
UpdateWindow(hwnd);

MSG msg = {};
while (GetMessage(&msg, NULL, 0, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}

return msg.wParam;
}

[Corey White]

More work on the menus.
Still at: https://github.com/alt-magick/Correspondence

#include <windows.h>
#include <commctrl.h>
#include <commdlg.h>
#include <string>

#define ID_FILE_SAVE 1001
#define ID_FILE_EXIT 1002
#define ID_FILE_OPEN 1003
#define ID_TOGGLE_SUBSTITUTION 1004
#define ID_CODE_ENCODE 1005
#define ID_CODE_DECODE 1006
#define ID_STATUSBAR 1007
#define ID_EDIT_CUT 1008
#define ID_EDIT_COPY 1009
#define ID_EDIT_PASTE 1010
#define ID_EDIT_DELETE 1011
#define ID_EDIT_UNDO 1012
#define ID_EDIT_ALL 1013
#define ID_CTRL_E_ENCODE 1014
#define ID_CTRL_D_DECODE 1015
#define ID_CTRL_T 1016
#define ID_CTRL_S 1017
#define ID_CTRL_O 1018
#define ID_CTRL_Q 1019
#define ID_CTRL_A 1020
#define ID_CTRL_Z 1021
#define ID_CTRL_A 1022

#pragma comment(lib, "user32.lib")
#pragma comment(lib, "comctl32.lib")
#pragma comment(linker, "/SUBSYSTEM:WINDOWS /ENTRY:wWinMainCRTStartup")

const wchar_t CLASS_NAME[] = L"Correspondence";
const wchar_t WINDOW_TITLE[] = L"Correspondence";

HWND hEdit;
HWND hStatusBar;
WNDPROC OldEditProc;
HFONT hFont;
OPENFILENAME ofn;
bool enableSubstitution = false;

void SaveFile(HWND hwnd);
void OpenFile(HWND hwnd);
void EncodeText();
void DecodeText();

void SelectAllText(HWND hwndEdit) {

int textLength = GetWindowTextLength(hwndEdit);
SendMessage(hwndEdit, EM_SETSEL, 0, textLength);
}

void UpdateStatusBar() {
int index = 0;
const int bufferSize = 256;
wchar_t statusText[bufferSize];
swprintf_s(statusText, bufferSize, L"Code %s", enableSubstitution ? L"Enabled" : L"Disabled");
SendMessage(hStatusBar, SB_SETTEXT, index, (LPARAM)statusText);
}

void SaveFile(HWND hwnd) {
WCHAR szFileName[MAX_PATH] = L"";

ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;
ofn.lpstrFile = szFileName;
ofn.lpstrFile[0] = L'\0';
ofn.nMaxFile = sizeof(szFileName);
ofn.lpstrFilter = L"Text Files (*.txt)\0*.txt\0All Files (*.*)\0*.*\0";
ofn.nFilterIndex = 1;

if (GetSaveFileName(&ofn) == TRUE) {
HANDLE hFile = CreateFile(szFileName, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
MessageBox(hwnd, L"Failed to create file!", L"Error", MB_OK | MB_ICONERROR);
return;
}

int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

const WCHAR bom = 0xFEFF;
DWORD bytesWritten;
WriteFile(hFile, &bom, sizeof(WCHAR), &bytesWritten, NULL);

WriteFile(hFile, buffer, len * sizeof(WCHAR), &bytesWritten, NULL);

delete[] buffer;
}

CloseHandle(hFile);

MessageBox(hwnd, L"File saved successfully!", L"Correspondence", MB_OK | MB_ICONINFORMATION);
}
}

void OpenFile(HWND hwnd) {
WCHAR szFileName[MAX_PATH] = L"";

ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;
ofn.lpstrFile = szFileName;
ofn.lpstrFile[0] = L'\0';
ofn.nMaxFile = sizeof(szFileName);
ofn.lpstrFilter = L"Text Files (*.txt)\0*.txt\0All Files (*.*)\0*.*\0";
ofn.nFilterIndex = 1;

if (GetOpenFileName(&ofn) == TRUE) {
HANDLE hFile = CreateFile(szFileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
MessageBox(hwnd, L"Failed to open file!", L"Error", MB_OK | MB_ICONERROR);
return;
}

DWORD dwFileSize = GetFileSize(hFile, NULL);
if (dwFileSize == INVALID_FILE_SIZE) {
CloseHandle(hFile);
MessageBox(hwnd, L"Failed to get file size!", L"Error", MB_OK | MB_ICONERROR);
return;
}

WCHAR* buffer = new WCHAR[dwFileSize / sizeof(WCHAR) + 1];

DWORD bytesRead;
if (ReadFile(hFile, buffer, dwFileSize, &bytesRead, NULL)) {
if (bytesRead >= sizeof(WCHAR) && buffer[0] == 0xFEFF) {
memmove(buffer, buffer + 1, (bytesRead - sizeof(WCHAR)));
bytesRead -= sizeof(WCHAR);
}

buffer[bytesRead / sizeof(WCHAR)] = L'\0';

SetWindowText(hEdit, buffer);
}
else {
MessageBox(hwnd, L"Failed to read file!", L"Error", MB_OK | MB_ICONERROR);
}

delete[] buffer;
CloseHandle(hFile);
}
}

void EncodeText() {
int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

for (int i = 0; i < len; ++i) {
WCHAR originalChar = buffer[i];
WCHAR newChar = originalChar;

switch (originalChar) {
case L'A': case L'a': newChar = L'☉'; break;
case L'B': case L'b': newChar = L'●'; break;
case L'C': case L'c': newChar = L'☾'; break;
case L'D': case L'd': newChar = L'☽'; break;
case L'E': case L'e': newChar = L'○'; break;
case L'F': case L'f': newChar = L'☿'; break;
case L'G': case L'g': newChar = L'♀'; break;
case L'H': case L'h': newChar = L'♁'; break;
case L'I': case L'i': newChar = L'♂'; break;
case L'J': case L'j': newChar = L'♃'; break;
case L'K': case L'k': newChar = L'♄'; break;
case L'L': case L'l': newChar = L'♅'; break;
case L'M': case L'm': newChar = L'♆'; break;
case L'N': case L'n': newChar = L'♇'; break;
case L'O': case L'o': newChar = L'♈'; break;
case L'P': case L'p': newChar = L'♉'; break;
case L'Q': case L'q': newChar = L'♊'; break;
case L'R': case L'r': newChar = L'♋'; break;
case L'S': case L's': newChar = L'♌'; break;
case L'T': case L't': newChar = L'♍'; break;
case L'U': case L'u': newChar = L'♎'; break;
case L'V': case L'v': newChar = L'♏'; break;
case L'W': case L'w': newChar = L'♐'; break;
case L'X': case L'x': newChar = L'♑'; break;
case L'Y': case L'y': newChar = L'♒'; break;
case L'Z': case L'z': newChar = L'♓'; break;
default:
newChar = originalChar;
break;
}

buffer[i] = newChar;
}

SetWindowText(hEdit, buffer);
delete[] buffer;
}

UpdateStatusBar();
}

void DecodeText() {
int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

for (int i = 0; i < len; ++i) {
WCHAR originalChar = buffer[i];
WCHAR newChar = originalChar;

switch (originalChar) {
case L'☉': newChar = L'a'; break;
case L'●': newChar = L'b'; break;
case L'☾': newChar = L'c'; break;
case L'☽': newChar = L'd'; break;
case L'○': newChar = L'e'; break;
case L'☿': newChar = L'f'; break;
case L'♀': newChar = L'g'; break;
case L'♁': newChar = L'h'; break;
case L'♂': newChar = L'i'; break;
case L'♃': newChar = L'j'; break;
case L'♄': newChar = L'k'; break;
case L'♅': newChar = L'l'; break;
case L'♆': newChar = L'm'; break;
case L'♇': newChar = L'n'; break;
case L'♈': newChar = L'o'; break;
case L'♉': newChar = L'p'; break;
case L'♊': newChar = L'q'; break;
case L'♋': newChar = L'r'; break;
case L'♌': newChar = L's'; break;
case L'♍': newChar = L't'; break;
case L'♎': newChar = L'u'; break;
case L'♏': newChar = L'v'; break;
case L'♐': newChar = L'w'; break;
case L'♑': newChar = L'x'; break;
case L'♒': newChar = L'y'; break;
case L'♓': newChar = L'z'; break;
default:
newChar = originalChar;
break;
}

buffer[i] = newChar;
}

SetWindowText(hEdit, buffer);
delete[] buffer;
}

UpdateStatusBar();
}

LRESULT CALLBACK EditSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
switch (uMsg) {
case WM_CHAR: {
bool ctrlPressed = GetKeyState(VK_CONTROL) & 0x8000;

if (ctrlPressed) {
return 0;
}
if (enableSubstitution) {
switch (wParam) {
case 'A': case 'a': wParam = L'☉'; break;
case 'B': case 'b': wParam = L'●'; break;
case 'C': case 'c': wParam = L'☾'; break;
case 'D': case 'd': wParam = L'☽'; break;
case 'E': case 'e': wParam = L'○'; break;
case 'F': case 'f': wParam = L'☿'; break;
case 'G': case 'g': wParam = L'♀'; break;
case 'H': case 'h': wParam = L'♁'; break;
case 'I': case 'i': wParam = L'♂'; break;
case 'J': case 'j': wParam = L'♃'; break;
case 'K': case 'k': wParam = L'♄'; break;
case 'L': case 'l': wParam = L'♅'; break;
case 'M': case 'm': wParam = L'♆'; break;
case 'N': case 'n': wParam = L'♇'; break;
case 'O': case 'o': wParam = L'♈'; break;
case 'P': case 'p': wParam = L'♉'; break;
case 'Q': case 'q': wParam = L'♊'; break;
case 'R': case 'r': wParam = L'♋'; break;
case 'S': case 's': wParam = L'♌'; break;
case 'T': case 't': wParam = L'♍'; break;
case 'U': case 'u': wParam = L'♎'; break;
case 'V': case 'v': wParam = L'♏'; break;
case 'W': case 'w': wParam = L'♐'; break;
case 'X': case 'x': wParam = L'♑'; break;
case 'Y': case 'y': wParam = L'♒'; break;
case 'Z': case 'z': wParam = L'♓'; break;
}
}

break;
}
case WM_KEYDOWN: {
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'E') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_E_ENCODE, 0), (LPARAM)hwnd);
return 0;
}

if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'D') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_D_DECODE, 0), (LPARAM)hwnd);
return 0;
}

if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'T') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_T, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'S') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_FILE_SAVE, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'O') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_FILE_OPEN, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'Q') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_FILE_EXIT, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'A') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_A, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'Z') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_Z, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'A') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_A, 0), (LPARAM)hwnd);
return 0;
}
break;
}
}
return CallWindowProc(OldEditProc, hwnd, uMsg, wParam, lParam);
}


LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
switch (uMsg) {
case WM_CREATE: {
hEdit = CreateWindowExW(
0, L"EDIT", L"",
WS_CHILD | WS_VISIBLE | WS_VSCROLL | WS_HSCROLL |
ES_LEFT | ES_MULTILINE | ES_AUTOVSCROLL | ES_AUTOHSCROLL,
0, 0, 0, 0,
hwnd, (HMENU)1, GetModuleHandle(NULL), NULL);
if (hEdit == NULL) {
MessageBox(hwnd, L"Could not create edit box.", L"Error", MB_OK | MB_ICONERROR);
return -1;
}

hFont = CreateFontW(
32, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE,
DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY,
DEFAULT_PITCH | FF_SWISS, L"Segoe UI Symbol");
SendMessage(hEdit, WM_SETFONT, (WPARAM)hFont, TRUE);

OldEditProc = (WNDPROC)SetWindowLongPtr(hEdit, GWLP_WNDPROC, (LONG_PTR)EditSubclassProc);

hStatusBar = CreateWindowExW(
0, STATUSCLASSNAME, NULL,
WS_CHILD | WS_VISIBLE | SBARS_SIZEGRIP,
0, 0, 0, 0,
hwnd, (HMENU)ID_STATUSBAR, GetModuleHandle(NULL), NULL);

int statusParts[] = { 200, -1 };
SendMessage(hStatusBar, SB_SETPARTS, sizeof(statusParts) / sizeof(int), (LPARAM)&statusParts);

UpdateStatusBar();
break;
}
case WM_SIZE: {
RECT rcClient;
GetClientRect(hwnd, &rcClient);
SetWindowPos(hEdit, NULL, 0, 0, rcClient.right, rcClient.bottom - 20, SWP_NOZORDER);
SetWindowPos(hStatusBar, NULL, 0, rcClient.bottom - 20, rcClient.right, 20, SWP_NOZORDER);
break;
}
case WM_COMMAND: {
int wmId = LOWORD(wParam);
switch (wmId) {
case ID_FILE_SAVE:
SaveFile(hwnd);
break;
case ID_FILE_OPEN:
OpenFile(hwnd);
break;
case ID_TOGGLE_SUBSTITUTION:
enableSubstitution = !enableSubstitution;
UpdateStatusBar();
break;
case ID_CODE_ENCODE:
SendMessage(hEdit, WM_CUT, 0, 0);
if (OpenClipboard(hwnd)) {
HANDLE hClipboardData = GetClipboardData(CF_UNICODETEXT);
if (hClipboardData != NULL) {
WCHAR* pszData = static_cast<WCHAR*>(GlobalLock(hClipboardData));
if (pszData != NULL) {

size_t length = wcslen(pszData);
WCHAR* pszModifiedData = new WCHAR[length + 1];
if (pszModifiedData != NULL) {
for (size_t i = 0; i < length; ++i) {
if (pszData[i] == L'a' || pszData[i] == L'A') {
pszModifiedData[i] = L'☉';
}
else if (pszData[i] == L'b' || pszData[i] == L'B') {
pszModifiedData[i] = L'●';
}
else if (pszData[i] == L'c' || pszData[i] == L'C') {
pszModifiedData[i] = L'☾';
}
else if (pszData[i] == L'd' || pszData[i] == L'D') {
pszModifiedData[i] = L'☽';
}
else if (pszData[i] == L'e' || pszData[i] == L'E') {
pszModifiedData[i] = L'○';
}
else if (pszData[i] == L'f' || pszData[i] == L'F') {
pszModifiedData[i] = L'☿';
}
else if (pszData[i] == L'g' || pszData[i] == L'G') {
pszModifiedData[i] = L'♀';
}
else if (pszData[i] == L'h' || pszData[i] == L'H') {
pszModifiedData[i] = L'♁';
}
else if (pszData[i] == L'i' || pszData[i] == L'I') {
pszModifiedData[i] = L'♂';
}
else if (pszData[i] == L'j' || pszData[i] == L'J') {
pszModifiedData[i] = L'♃';
}
else if (pszData[i] == L'k' || pszData[i] == L'K') {
pszModifiedData[i] = L'♄';
}
else if (pszData[i] == L'l' || pszData[i] == L'L') {
pszModifiedData[i] = L'♅';
}
else if (pszData[i] == L'm' || pszData[i] == L'M') {
pszModifiedData[i] = L'♆';
}
else if (pszData[i] == L'n' || pszData[i] == L'N') {
pszModifiedData[i] = L'♇';
}
else if (pszData[i] == L'o' || pszData[i] == L'O') {
pszModifiedData[i] = L'♈';
}
else if (pszData[i] == L'p' || pszData[i] == L'P') {
pszModifiedData[i] = L'♉';
}
else if (pszData[i] == L'q' || pszData[i] == L'Q') {
pszModifiedData[i] = L'♊';
}
else if (pszData[i] == L'r' || pszData[i] == L'R') {
pszModifiedData[i] = L'♋';
}
else if (pszData[i] == L's' || pszData[i] == L'S') {
pszModifiedData[i] = L'♌';
}
else if (pszData[i] == L't' || pszData[i] == L'T') {
pszModifiedData[i] = L'♍';
}
else if (pszData[i] == L'u' || pszData[i] == L'U') {
pszModifiedData[i] = L'♎';
}
else if (pszData[i] == L'v' || pszData[i] == L'V') {
pszModifiedData[i] = L'♏';
}
else if (pszData[i] == L'w' || pszData[i] == L'W') {
pszModifiedData[i] = L'♐';
}
else if (pszData[i] == L'x' || pszData[i] == L'X') {
pszModifiedData[i] = L'♑';
}
else if (pszData[i] == L'y' || pszData[i] == L'Y') {
pszModifiedData[i] = L'♒';
}
else if (pszData[i] == L'z' || pszData[i] == L'Z') {
pszModifiedData[i] = L'♓';
}
else {
pszModifiedData[i] = pszData[i];
}
}
pszModifiedData[length] = L'\0';


EmptyClipboard();


HANDLE hNewData = GlobalAlloc(GMEM_MOVEABLE, (length + 1) * sizeof(WCHAR));
if (hNewData != NULL) {
WCHAR* pszNewData = static_cast<WCHAR*>(GlobalLock(hNewData));
if (pszNewData != NULL) {
wcscpy_s(pszNewData, length + 1, pszModifiedData);
GlobalUnlock(hNewData);


SetClipboardData(CF_UNICODETEXT, hNewData);
}
else {
GlobalFree(hNewData);
}
}

delete[] pszModifiedData;
}
GlobalUnlock(hClipboardData);
}
}

CloseClipboard();
}
SendMessage(hEdit, WM_PASTE, 0, 0);
break;

case ID_CODE_DECODE:
SendMessage(hEdit, WM_CUT, 0, 0);
if (OpenClipboard(hwnd)) {
HANDLE hClipboardData = GetClipboardData(CF_UNICODETEXT);
if (hClipboardData != NULL) {
WCHAR* pszData = static_cast<WCHAR*>(GlobalLock(hClipboardData));
if (pszData != NULL) {

size_t length = wcslen(pszData);
WCHAR* pszModifiedData = new WCHAR[length + 1];
if (pszModifiedData != NULL) {
for (size_t i = 0; i < length; ++i) {
if (pszData[i] == L'☉') {
pszModifiedData[i] = L'a';
}
else if (pszData[i] == L'●') {
pszModifiedData[i] = L'b';
}
else if (pszData[i] == L'☾') {
pszModifiedData[i] = L'c';
}
else if (pszData[i] == L'☽') {
pszModifiedData[i] = L'd';
}
else if (pszData[i] == L'○') {
pszModifiedData[i] = L'e';
}
else if (pszData[i] == L'☿') {
pszModifiedData[i] = L'f';
}
else if (pszData[i] == L'♀') {
pszModifiedData[i] = L'g';
}
else if (pszData[i] == L'♁') {
pszModifiedData[i] = L'h';
}
else if (pszData[i] == L'♂') {
pszModifiedData[i] = L'i';
}
else if (pszData[i] == L'♃') {
pszModifiedData[i] = L'j';
}
else if (pszData[i] == L'♄') {
pszModifiedData[i] = L'k';
}
else if (pszData[i] == L'♅') {
pszModifiedData[i] = L'l';
}
else if (pszData[i] == L'♆') {
pszModifiedData[i] = L'm';
}
else if (pszData[i] == L'♇') {
pszModifiedData[i] = L'n';
}
else if (pszData[i] == L'♈') {
pszModifiedData[i] = L'o';
}
else if (pszData[i] == L'♉') {
pszModifiedData[i] = L'p';
}
else if (pszData[i] == L'♊') {
pszModifiedData[i] = L'q';
}
else if (pszData[i] == L'♋') {
pszModifiedData[i] = L'r';
}
else if (pszData[i] == L'♌') {
pszModifiedData[i] = L's';
}
else if (pszData[i] == L'♍') {
pszModifiedData[i] = L't';
}
else if (pszData[i] == L'♎') {
pszModifiedData[i] = L'u';
}
else if (pszData[i] == L'♏') {
pszModifiedData[i] = L'v';
}
else if (pszData[i] == L'♐') {
pszModifiedData[i] = L'w';
}
else if (pszData[i] == L'♑') {
pszModifiedData[i] = L'x';
}
else if (pszData[i] == L'♒') {
pszModifiedData[i] = L'y';
}
else if (pszData[i] == L'♓') {
pszModifiedData[i] = L'z';
}

else {
pszModifiedData[i] = pszData[i];
}
}
pszModifiedData[length] = L'\0';

EmptyClipboard();

HANDLE hNewData = GlobalAlloc(GMEM_MOVEABLE, (length + 1) * sizeof(WCHAR));
if (hNewData != NULL) {
WCHAR* pszNewData = static_cast<WCHAR*>(GlobalLock(hNewData));
if (pszNewData != NULL) {
wcscpy_s(pszNewData, length + 1, pszModifiedData);
GlobalUnlock(hNewData);


SetClipboardData(CF_UNICODETEXT, hNewData);
}
else {
GlobalFree(hNewData);
}
}

delete[] pszModifiedData;
}
GlobalUnlock(hClipboardData);
}
}

CloseClipboard();
}
SendMessage(hEdit, WM_PASTE, 0, 0);
break;

case ID_EDIT_CUT: {
SendMessage(hEdit, WM_CUT, 0, 0);
break;
}
case ID_EDIT_COPY: {
SendMessage(hEdit, WM_COPY, 0, 0);
break;
}
case ID_EDIT_PASTE: {
SendMessage(hEdit, WM_PASTE, 0, 0);
break;
}
case ID_EDIT_UNDO: {
SendMessage(hEdit, WM_UNDO, 0, 0);
break;
}
case ID_EDIT_ALL: {
SendMessage(hEdit, EM_SETSEL, 0, -1);
SendMessage(hEdit, WM_COPY, 0, 0);
break;
}
case ID_EDIT_DELETE: {
DWORD start, end;
SendMessage(hEdit, EM_GETSEL, reinterpret_cast<WPARAM>(&start), reinterpret_cast<LPARAM>(&end));

if (start != end) {
SendMessage(hEdit, EM_REPLACESEL, TRUE, reinterpret_cast<LPARAM>(TEXT("")));
}
else {
SendMessage(hEdit, EM_SETSEL, start, end + 1);
SendMessage(hEdit, EM_REPLACESEL, TRUE, reinterpret_cast<LPARAM>(TEXT("")));
}
break;
}
case ID_CTRL_D_DECODE: {
SendMessage(hwnd, WM_COMMAND, MAKEWPARAM(ID_CODE_DECODE, 0), 0);
break;
}
case ID_CTRL_E_ENCODE: {
SendMessage(hwnd, WM_COMMAND, MAKEWPARAM(ID_CODE_ENCODE, 0), 0);
break;
}

case ID_CTRL_Z: {
;
SendMessage(hEdit, EM_UNDO, 0, 0);
break;
}
case ID_CTRL_T: {
enableSubstitution = !enableSubstitution;
UpdateStatusBar();
break;
}
case ID_CTRL_A: {
int textLength = GetWindowTextLength(hEdit);
SendMessage(hEdit, EM_SETSEL, 0, textLength);
break;
}
case ID_FILE_EXIT:
DestroyWindow(hwnd);
break;
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
break;
}
case WM_DESTROY: {
if (hFont) {
DeleteObject(hFont);
}
PostQuitMessage(0);
break;
}
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
return 0;
}

int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PWSTR pCmdLine, int nCmdShow) {
INITCOMMONCONTROLSEX iccex;
iccex.dwSize = sizeof(iccex);
iccex.dwICC = ICC_WIN95_CLASSES;
InitCommonControlsEx(&iccex);

WNDCLASS wc = {};
wc.lpfnWndProc = WindowProc;
wc.hInstance = hInstance;
wc.lpszClassName = CLASS_NAME;

RegisterClass(&wc);

HWND hwnd = CreateWindowExW(
0, CLASS_NAME, WINDOW_TITLE,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT, 800, 600,
NULL, NULL, hInstance, NULL);

if (hwnd == NULL) {
return 0;
}

HMENU hMenu = CreateMenu();
HMENU hSubMenuFile = CreatePopupMenu();
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_OPEN, L"&Open - Ctrl + O");
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_SAVE, L"&Save - Ctrl + S");
AppendMenu(hSubMenuFile, MF_SEPARATOR, 0, NULL);
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_EXIT, L"E&xit - Ctrl + Q");

HMENU hSubMenuCode = CreatePopupMenu();
AppendMenu(hSubMenuCode, MF_STRING, ID_CODE_ENCODE, L"&Encode - Ctrl + E");
AppendMenu(hSubMenuCode, MF_STRING, ID_CODE_DECODE, L"&Decode - Ctrl + D");
AppendMenu(hSubMenuCode, MF_STRING, ID_TOGGLE_SUBSTITUTION, L"&Toggle - Ctrl + T");

HMENU hSubMenuEdit = CreatePopupMenu();
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_UNDO, L"&Undo - Ctrl + Z");
AppendMenu(hSubMenuEdit, MF_SEPARATOR, 0, NULL);
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_DELETE, L"&Delete - Del");
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_CUT, L"&Cut - Ctrl + X");
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_COPY, L"&Copy - Ctrl + C");
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_PASTE, L"&Paste - Ctrl + V");
AppendMenu(hSubMenuEdit, MF_SEPARATOR, 0, NULL);
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_ALL, L"&Select All - Ctrl + A");

AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenuFile, L"&File");
AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenuEdit, L"&Edit");
AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenuCode, L"&Code");


SetMenu(hwnd, hMenu);

ShowWindow(hwnd, nCmdShow);
UpdateWindow(hwnd);

MSG msg = {};
while (GetMessage(&msg, NULL, 0, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}

return msg.wParam;
}

[Corey White]

Final Update of Program.
Still at https://github.com/alt-magick/Correspondence

#include <windows.h>
#include <commctrl.h>
#include <commdlg.h>
#include <string>
#include <stack>

#define ID_FILE_SAVE 1001
#define ID_FILE_EXIT 1002
#define ID_FILE_OPEN 1003
#define ID_TOGGLE_SUBSTITUTION 1004
#define ID_CODE_ENCODE 1005
#define ID_CODE_DECODE 1006
#define ID_STATUSBAR 1007
#define ID_EDIT_CUT 1008
#define ID_EDIT_COPY 1009
#define ID_EDIT_PASTE 1010
#define ID_EDIT_DELETE 1011
#define ID_EDIT_ALL 1012
#define ID_EDIT_UNDO 1013
#define ID_CTRL_E_ENCODE 1014
#define ID_CTRL_D_DECODE 1015
#define ID_CTRL_T 1016
#define ID_CTRL_S 1017
#define ID_CTRL_O 1018
#define ID_CTRL_Q 1019
#define ID_CTRL_A 1020
#define ID_CTRL_X 1021
#define ID_CTRL_V 1022
#define ID_CTRL_C 1023

#pragma comment(lib, "user32.lib")
#pragma comment(lib, "comctl32.lib")
#pragma comment(linker, "/SUBSYSTEM:WINDOWS /ENTRY:wWinMainCRTStartup")

const wchar_t CLASS_NAME[] = L"Correspondence";
const wchar_t WINDOW_TITLE[] = L"Correspondence";

HWND hEdit;
HWND hStatusBar;
WNDPROC OldEditProc;
HFONT hFont;
OPENFILENAME ofn;
bool enableSubstitution = false;

// Stack for undo functionality
std::stack<std::wstring> undoStack;

void SaveFile(HWND hwnd);
void OpenFile(HWND hwnd);
void EncodeText();
void DecodeText();

void SelectAllText(HWND hwndEdit) {

int textLength = GetWindowTextLength(hwndEdit);
SendMessage(hwndEdit, EM_SETSEL, 0, textLength);
}

void UpdateStatusBar() {
int index = 0;
const int bufferSize = 256;
wchar_t statusText[bufferSize];
swprintf_s(statusText, bufferSize, L"Code %s", enableSubstitution ? L"Enabled" : L"Disabled");
SendMessage(hStatusBar, SB_SETTEXT, index, (LPARAM)statusText);
}

void SaveFile(HWND hwnd) {
WCHAR szFileName[MAX_PATH] = L"";

ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;
ofn.lpstrFile = szFileName;
ofn.lpstrFile[0] = L'\0';
ofn.nMaxFile = sizeof(szFileName);
ofn.lpstrFilter = L"Text Files (*.txt)\0*.txt\0All Files (*.*)\0*.*\0";
ofn.nFilterIndex = 1;

if (GetSaveFileName(&ofn) == TRUE) {
HANDLE hFile = CreateFile(szFileName, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
MessageBox(hwnd, L"Failed to create file!", L"Error", MB_OK | MB_ICONERROR);
return;
}

int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

const WCHAR bom = 0xFEFF;
DWORD bytesWritten;
WriteFile(hFile, &bom, sizeof(WCHAR), &bytesWritten, NULL);

WriteFile(hFile, buffer, len * sizeof(WCHAR), &bytesWritten, NULL);

delete[] buffer;
}

CloseHandle(hFile);

MessageBox(hwnd, L"File saved successfully!", L"Correspondence", MB_OK | MB_ICONINFORMATION);
}
}

void OpenFile(HWND hwnd) {
WCHAR szFileName[MAX_PATH] = L"";

ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;
ofn.lpstrFile = szFileName;
ofn.lpstrFile[0] = L'\0';
ofn.nMaxFile = sizeof(szFileName);
ofn.lpstrFilter = L"Text Files (*.txt)\0*.txt\0All Files (*.*)\0*.*\0";
ofn.nFilterIndex = 1;

if (GetOpenFileName(&ofn) == TRUE) {
HANDLE hFile = CreateFile(szFileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
MessageBox(hwnd, L"Failed to open file!", L"Error", MB_OK | MB_ICONERROR);
return;
}

DWORD dwFileSize = GetFileSize(hFile, NULL);
if (dwFileSize == INVALID_FILE_SIZE) {
CloseHandle(hFile);
MessageBox(hwnd, L"Failed to get file size!", L"Error", MB_OK | MB_ICONERROR);
return;
}

WCHAR* buffer = new WCHAR[dwFileSize / sizeof(WCHAR) + 1];

DWORD bytesRead;
if (ReadFile(hFile, buffer, dwFileSize, &bytesRead, NULL)) {
if (bytesRead >= sizeof(WCHAR) && buffer[0] == 0xFEFF) {
memmove(buffer, buffer + 1, (bytesRead - sizeof(WCHAR)));
bytesRead -= sizeof(WCHAR);
}

buffer[bytesRead / sizeof(WCHAR)] = L'\0';

SetWindowText(hEdit, buffer);
}
else {
MessageBox(hwnd, L"Failed to read file!", L"Error", MB_OK | MB_ICONERROR);
}

delete[] buffer;
CloseHandle(hFile);
}
}

void EncodeText() {
int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

for (int i = 0; i < len; ++i) {
WCHAR originalChar = buffer[i];
WCHAR newChar = originalChar;

switch (originalChar) {
case L'A': case L'a': newChar = L'☉'; break;
case L'B': case L'b': newChar = L'●'; break;
case L'C': case L'c': newChar = L'☾'; break;
case L'D': case L'd': newChar = L'☽'; break;
case L'E': case L'e': newChar = L'○'; break;
case L'F': case L'f': newChar = L'☿'; break;
case L'G': case L'g': newChar = L'♀'; break;
case L'H': case L'h': newChar = L'♁'; break;
case L'I': case L'i': newChar = L'♂'; break;
case L'J': case L'j': newChar = L'♃'; break;
case L'K': case L'k': newChar = L'♄'; break;
case L'L': case L'l': newChar = L'♅'; break;
case L'M': case L'm': newChar = L'♆'; break;
case L'N': case L'n': newChar = L'♇'; break;
case L'O': case L'o': newChar = L'♈'; break;
case L'P': case L'p': newChar = L'♉'; break;
case L'Q': case L'q': newChar = L'♊'; break;
case L'R': case L'r': newChar = L'♋'; break;
case L'S': case L's': newChar = L'♌'; break;
case L'T': case L't': newChar = L'♍'; break;
case L'U': case L'u': newChar = L'♎'; break;
case L'V': case L'v': newChar = L'♏'; break;
case L'W': case L'w': newChar = L'♐'; break;
case L'X': case L'x': newChar = L'♑'; break;
case L'Y': case L'y': newChar = L'♒'; break;
case L'Z': case L'z': newChar = L'♓'; break;
default:
newChar = originalChar;
break;
}

buffer[i] = newChar;
}

SetWindowText(hEdit, buffer);
delete[] buffer;
}

UpdateStatusBar();
}

void DecodeText() {
int len = GetWindowTextLength(hEdit);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hEdit, buffer, len + 1);

for (int i = 0; i < len; ++i) {
WCHAR originalChar = buffer[i];
WCHAR newChar = originalChar;

switch (originalChar) {
case L'☉': newChar = L'a'; break;
case L'●': newChar = L'b'; break;
case L'☾': newChar = L'c'; break;
case L'☽': newChar = L'd'; break;
case L'○': newChar = L'e'; break;
case L'☿': newChar = L'f'; break;
case L'♀': newChar = L'g'; break;
case L'♁': newChar = L'h'; break;
case L'♂': newChar = L'i'; break;
case L'♃': newChar = L'j'; break;
case L'♄': newChar = L'k'; break;
case L'♅': newChar = L'l'; break;
case L'♆': newChar = L'm'; break;
case L'♇': newChar = L'n'; break;
case L'♈': newChar = L'o'; break;
case L'♉': newChar = L'p'; break;
case L'♊': newChar = L'q'; break;
case L'♋': newChar = L'r'; break;
case L'♌': newChar = L's'; break;
case L'♍': newChar = L't'; break;
case L'♎': newChar = L'u'; break;
case L'♏': newChar = L'v'; break;
case L'♐': newChar = L'w'; break;
case L'♑': newChar = L'x'; break;
case L'♒': newChar = L'y'; break;
case L'♓': newChar = L'z'; break;
default:
newChar = originalChar;
break;
}

buffer[i] = newChar;
}

SetWindowText(hEdit, buffer);
delete[] buffer;
}

UpdateStatusBar();
}

void Undo() {
if (!undoStack.empty()) {
std::wstring previousState = undoStack.top();
undoStack.pop();
SetWindowText(hEdit, previousState.c_str());
}
}

LRESULT CALLBACK EditSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
switch (uMsg) {
case WM_CHAR: {
bool ctrlPressed = GetKeyState(VK_CONTROL) & 0x8000;

if (ctrlPressed) {

return 0;
}
if (wParam == VK_RETURN || wParam == VK_DELETE || wParam == VK_BACK || wParam == VK_TAB) {
int len = GetWindowTextLength(hwnd);
if (len > 0) {
WCHAR* buffer = new WCHAR[len + 1];
GetWindowText(hwnd, buffer, len + 1);
undoStack.push(std::wstring(buffer));
delete[] buffer;
}
}
if (enableSubstitution) {
switch (wParam) {
case 'A': case 'a': wParam = L'☉'; break;
case 'B': case 'b': wParam = L'●'; break;
case 'C': case 'c': wParam = L'☾'; break;
case 'D': case 'd': wParam = L'☽'; break;
case 'E': case 'e': wParam = L'○'; break;
case 'F': case 'f': wParam = L'☿'; break;
case 'G': case 'g': wParam = L'♀'; break;
case 'H': case 'h': wParam = L'♁'; break;
case 'I': case 'i': wParam = L'♂'; break;
case 'J': case 'j': wParam = L'♃'; break;
case 'K': case 'k': wParam = L'♄'; break;
case 'L': case 'l': wParam = L'♅'; break;
case 'M': case 'm': wParam = L'♆'; break;
case 'N': case 'n': wParam = L'♇'; break;
case 'O': case 'o': wParam = L'♈'; break;
case 'P': case 'p': wParam = L'♉'; break;
case 'Q': case 'q': wParam = L'♊'; break;
case 'R': case 'r': wParam = L'♋'; break;
case 'S': case 's': wParam = L'♌'; break;
case 'T': case 't': wParam = L'♍'; break;
case 'U': case 'u': wParam = L'♎'; break;
case 'V': case 'v': wParam = L'♏'; break;
case 'W': case 'w': wParam = L'♐'; break;
case 'X': case 'x': wParam = L'♑'; break;
case 'Y': case 'y': wParam = L'♒'; break;
case 'Z': case 'z': wParam = L'♓'; break;
}
}

break;
}
case WM_KEYDOWN: {
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'E') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_E_ENCODE, 0), (LPARAM)hwnd);
return 0;
}

if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'D') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_D_DECODE, 0), (LPARAM)hwnd);
return 0;
}

if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'T') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_T, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'S') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_FILE_SAVE, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'O') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_FILE_OPEN, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'Q') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_FILE_EXIT, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'A') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_A, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'X') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_X, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'V') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_V, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'C') {
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(ID_CTRL_C, 0), (LPARAM)hwnd);
return 0;
}
if (GetKeyState(VK_CONTROL) & 0x8000 && wParam == 'Z') {
Undo();
return 0;
}
break;
}
}
return CallWindowProc(OldEditProc, hwnd, uMsg, wParam, lParam);
}


LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
switch (uMsg) {
case WM_CREATE: {
hEdit = CreateWindowExW(
0, L"EDIT", L"",
WS_CHILD | WS_VISIBLE | WS_VSCROLL | WS_HSCROLL |
ES_LEFT | ES_MULTILINE | ES_AUTOVSCROLL | ES_AUTOHSCROLL,
0, 0, 0, 0,
hwnd, (HMENU)1, GetModuleHandle(NULL), NULL);
if (hEdit == NULL) {
MessageBox(hwnd, L"Could not create edit box.", L"Error", MB_OK | MB_ICONERROR);
return -1;
}

hFont = CreateFontW(
32, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE,
DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY,
DEFAULT_PITCH | FF_SWISS, L"Segoe UI Symbol");
SendMessage(hEdit, WM_SETFONT, (WPARAM)hFont, TRUE);

OldEditProc = (WNDPROC)SetWindowLongPtr(hEdit, GWLP_WNDPROC, (LONG_PTR)EditSubclassProc);

hStatusBar = CreateWindowExW(
0, STATUSCLASSNAME, NULL,
WS_CHILD | WS_VISIBLE | SBARS_SIZEGRIP,
0, 0, 0, 0,
hwnd, (HMENU)ID_STATUSBAR, GetModuleHandle(NULL), NULL);

int statusParts[] = { 125, -1 };
SendMessage(hStatusBar, SB_SETPARTS, sizeof(statusParts) / sizeof(int), (LPARAM)&statusParts);

UpdateStatusBar();
break;
}
case WM_SIZE: {
RECT rcClient;
GetClientRect(hwnd, &rcClient);
SetWindowPos(hEdit, NULL, 0, 0, rcClient.right, rcClient.bottom - 20, SWP_NOZORDER);
SetWindowPos(hStatusBar, NULL, 0, rcClient.bottom - 20, rcClient.right, 20, SWP_NOZORDER);
break;
}
case WM_COMMAND: {
int wmId = LOWORD(wParam);
switch (wmId) {
case ID_FILE_SAVE:
SaveFile(hwnd);
break;
case ID_FILE_OPEN:
OpenFile(hwnd);
break;
case ID_TOGGLE_SUBSTITUTION:
enableSubstitution = !enableSubstitution;
UpdateStatusBar();
break;
case ID_CODE_ENCODE:
SendMessage(hEdit, WM_CUT, 0, 0);
if (OpenClipboard(hwnd)) {
HANDLE hClipboardData = GetClipboardData(CF_UNICODETEXT);
if (hClipboardData != NULL) {
WCHAR* pszData = static_cast<WCHAR*>(GlobalLock(hClipboardData));
if (pszData != NULL) {

size_t length = wcslen(pszData);
WCHAR* pszModifiedData = new WCHAR[length + 1];
if (pszModifiedData != NULL) {
for (size_t i = 0; i < length; ++i) {
if (pszData[i] == L'a' || pszData[i] == L'A') {
pszModifiedData[i] = L'☉';
}
else if (pszData[i] == L'b' || pszData[i] == L'B') {
pszModifiedData[i] = L'●';
}
else if (pszData[i] == L'c' || pszData[i] == L'C') {
pszModifiedData[i] = L'☾';
}
else if (pszData[i] == L'd' || pszData[i] == L'D') {
pszModifiedData[i] = L'☽';
}
else if (pszData[i] == L'e' || pszData[i] == L'E') {
pszModifiedData[i] = L'○';
}
else if (pszData[i] == L'f' || pszData[i] == L'F') {
pszModifiedData[i] = L'☿';
}
else if (pszData[i] == L'g' || pszData[i] == L'G') {
pszModifiedData[i] = L'♀';
}
else if (pszData[i] == L'h' || pszData[i] == L'H') {
pszModifiedData[i] = L'♁';
}
else if (pszData[i] == L'i' || pszData[i] == L'I') {
pszModifiedData[i] = L'♂';
}
else if (pszData[i] == L'j' || pszData[i] == L'J') {
pszModifiedData[i] = L'♃';
}
else if (pszData[i] == L'k' || pszData[i] == L'K') {
pszModifiedData[i] = L'♄';
}
else if (pszData[i] == L'l' || pszData[i] == L'L') {
pszModifiedData[i] = L'♅';
}
else if (pszData[i] == L'm' || pszData[i] == L'M') {
pszModifiedData[i] = L'♆';
}
else if (pszData[i] == L'n' || pszData[i] == L'N') {
pszModifiedData[i] = L'♇';
}
else if (pszData[i] == L'o' || pszData[i] == L'O') {
pszModifiedData[i] = L'♈';
}
else if (pszData[i] == L'p' || pszData[i] == L'P') {
pszModifiedData[i] = L'♉';
}
else if (pszData[i] == L'q' || pszData[i] == L'Q') {
pszModifiedData[i] = L'♊';
}
else if (pszData[i] == L'r' || pszData[i] == L'R') {
pszModifiedData[i] = L'♋';
}
else if (pszData[i] == L's' || pszData[i] == L'S') {
pszModifiedData[i] = L'♌';
}
else if (pszData[i] == L't' || pszData[i] == L'T') {
pszModifiedData[i] = L'♍';
}
else if (pszData[i] == L'u' || pszData[i] == L'U') {
pszModifiedData[i] = L'♎';
}
else if (pszData[i] == L'v' || pszData[i] == L'V') {
pszModifiedData[i] = L'♏';
}
else if (pszData[i] == L'w' || pszData[i] == L'W') {
pszModifiedData[i] = L'♐';
}
else if (pszData[i] == L'x' || pszData[i] == L'X') {
pszModifiedData[i] = L'♑';
}
else if (pszData[i] == L'y' || pszData[i] == L'Y') {
pszModifiedData[i] = L'♒';
}
else if (pszData[i] == L'z' || pszData[i] == L'Z') {
pszModifiedData[i] = L'♓';
}
else {
pszModifiedData[i] = pszData[i];
}
}
pszModifiedData[length] = L'\0';


EmptyClipboard();


HANDLE hNewData = GlobalAlloc(GMEM_MOVEABLE, (length + 1) * sizeof(WCHAR));
if (hNewData != NULL) {
WCHAR* pszNewData = static_cast<WCHAR*>(GlobalLock(hNewData));
if (pszNewData != NULL) {
wcscpy_s(pszNewData, length + 1, pszModifiedData);
GlobalUnlock(hNewData);


SetClipboardData(CF_UNICODETEXT, hNewData);
}
else {
GlobalFree(hNewData);
}
}

delete[] pszModifiedData;
}
GlobalUnlock(hClipboardData);
}
}

CloseClipboard();
}
SendMessage(hEdit, WM_PASTE, 0, 0);
break;

case ID_CODE_DECODE:
SendMessage(hEdit, WM_CUT, 0, 0);
if (OpenClipboard(hwnd)) {
HANDLE hClipboardData = GetClipboardData(CF_UNICODETEXT);
if (hClipboardData != NULL) {
WCHAR* pszData = static_cast<WCHAR*>(GlobalLock(hClipboardData));
if (pszData != NULL) {

size_t length = wcslen(pszData);
WCHAR* pszModifiedData = new WCHAR[length + 1];
if (pszModifiedData != NULL) {
for (size_t i = 0; i < length; ++i) {
if (pszData[i] == L'☉') {
pszModifiedData[i] = L'a';
}
else if (pszData[i] == L'●') {
pszModifiedData[i] = L'b';
}
else if (pszData[i] == L'☾') {
pszModifiedData[i] = L'c';
}
else if (pszData[i] == L'☽') {
pszModifiedData[i] = L'd';
}
else if (pszData[i] == L'○') {
pszModifiedData[i] = L'e';
}
else if (pszData[i] == L'☿') {
pszModifiedData[i] = L'f';
}
else if (pszData[i] == L'♀') {
pszModifiedData[i] = L'g';
}
else if (pszData[i] == L'♁') {
pszModifiedData[i] = L'h';
}
else if (pszData[i] == L'♂') {
pszModifiedData[i] = L'i';
}
else if (pszData[i] == L'♃') {
pszModifiedData[i] = L'j';
}
else if (pszData[i] == L'♄') {
pszModifiedData[i] = L'k';
}
else if (pszData[i] == L'♅') {
pszModifiedData[i] = L'l';
}
else if (pszData[i] == L'♆') {
pszModifiedData[i] = L'm';
}
else if (pszData[i] == L'♇') {
pszModifiedData[i] = L'n';
}
else if (pszData[i] == L'♈') {
pszModifiedData[i] = L'o';
}
else if (pszData[i] == L'♉') {
pszModifiedData[i] = L'p';
}
else if (pszData[i] == L'♊') {
pszModifiedData[i] = L'q';
}
else if (pszData[i] == L'♋') {
pszModifiedData[i] = L'r';
}
else if (pszData[i] == L'♌') {
pszModifiedData[i] = L's';
}
else if (pszData[i] == L'♍') {
pszModifiedData[i] = L't';
}
else if (pszData[i] == L'♎') {
pszModifiedData[i] = L'u';
}
else if (pszData[i] == L'♏') {
pszModifiedData[i] = L'v';
}
else if (pszData[i] == L'♐') {
pszModifiedData[i] = L'w';
}
else if (pszData[i] == L'♑') {
pszModifiedData[i] = L'x';
}
else if (pszData[i] == L'♒') {
pszModifiedData[i] = L'y';
}
else if (pszData[i] == L'♓') {
pszModifiedData[i] = L'z';
}

else {
pszModifiedData[i] = pszData[i];
}
}
pszModifiedData[length] = L'\0';

EmptyClipboard();

HANDLE hNewData = GlobalAlloc(GMEM_MOVEABLE, (length + 1) * sizeof(WCHAR));
if (hNewData != NULL) {
WCHAR* pszNewData = static_cast<WCHAR*>(GlobalLock(hNewData));
if (pszNewData != NULL) {
wcscpy_s(pszNewData, length + 1, pszModifiedData);
GlobalUnlock(hNewData);


SetClipboardData(CF_UNICODETEXT, hNewData);
}
else {
GlobalFree(hNewData);
}
}

delete[] pszModifiedData;
}
GlobalUnlock(hClipboardData);
}
}

CloseClipboard();
}
SendMessage(hEdit, WM_PASTE, 0, 0);
break;

case ID_EDIT_CUT: {
SendMessage(hEdit, WM_CUT, 0, 0);
break;
}
case ID_EDIT_COPY: {
SendMessage(hEdit, WM_COPY, 0, 0);
break;
}
case ID_EDIT_PASTE: {
SendMessage(hEdit, WM_PASTE, 0, 0);
break;
}
case ID_EDIT_ALL: {
SendMessage(hEdit, EM_SETSEL, 0, -1);
SendMessage(hEdit, WM_COPY, 0, 0);
break;
}
case ID_EDIT_UNDO: {
Undo();
break;
}
case ID_EDIT_DELETE: {
DWORD start, end;
SendMessage(hEdit, EM_GETSEL, reinterpret_cast<WPARAM>(&start), reinterpret_cast<LPARAM>(&end));

if (start != end) {
SendMessage(hEdit, EM_REPLACESEL, TRUE, reinterpret_cast<LPARAM>(TEXT("")));
}
else {
SendMessage(hEdit, EM_SETSEL, start, end + 1);
SendMessage(hEdit, EM_REPLACESEL, TRUE, reinterpret_cast<LPARAM>(TEXT("")));
}
break;
}
case ID_CTRL_D_DECODE: {
SendMessage(hwnd, WM_COMMAND, MAKEWPARAM(ID_CODE_DECODE, 0), 0);
break;
}
case ID_CTRL_E_ENCODE: {
SendMessage(hwnd, WM_COMMAND, MAKEWPARAM(ID_CODE_ENCODE, 0), 0);
break;
}

case ID_CTRL_T: {
enableSubstitution = !enableSubstitution;
UpdateStatusBar();
break;
}
case ID_CTRL_A: {
int textLength = GetWindowTextLength(hEdit);
SendMessage(hEdit, EM_SETSEL, 0, textLength);
break;
}
case ID_CTRL_X: {
SendMessage(hEdit, WM_CUT, 0, 0);
break;
}
case ID_CTRL_V: {
SendMessage(hEdit, WM_PASTE, 0, 0);
break;
}
case ID_CTRL_C: {
SendMessage(hEdit, WM_COPY, 0, 0);
break;
}
case ID_FILE_EXIT:
DestroyWindow(hwnd);
break;
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
break;
}
case WM_DESTROY: {
if (hFont) {
DeleteObject(hFont);
}
PostQuitMessage(0);
break;
}
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
return 0;
}

int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PWSTR pCmdLine, int nCmdShow) {
INITCOMMONCONTROLSEX iccex;
iccex.dwSize = sizeof(iccex);
iccex.dwICC = ICC_WIN95_CLASSES;
InitCommonControlsEx(&iccex);

WNDCLASS wc = {};
wc.lpfnWndProc = WindowProc;
wc.hInstance = hInstance;
wc.lpszClassName = CLASS_NAME;

RegisterClass(&wc);

HWND hwnd = CreateWindowExW(
0, CLASS_NAME, WINDOW_TITLE,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT, 480, 620,
NULL, NULL, hInstance, NULL);

if (hwnd == NULL) {
return 0;
}

HMENU hMenu = CreateMenu();
HMENU hSubMenuFile = CreatePopupMenu();
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_OPEN, L"&Open - Ctrl + O");
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_SAVE, L"&Save - Ctrl + S");
AppendMenu(hSubMenuFile, MF_SEPARATOR, 0, NULL);
AppendMenu(hSubMenuFile, MF_STRING, ID_FILE_EXIT, L"E&xit - Ctrl + Q");

HMENU hSubMenuCode = CreatePopupMenu();
AppendMenu(hSubMenuCode, MF_STRING, ID_CODE_ENCODE, L"&Encode - Ctrl + E");
AppendMenu(hSubMenuCode, MF_STRING, ID_CODE_DECODE, L"&Decode - Ctrl + D");
AppendMenu(hSubMenuCode, MF_STRING, ID_TOGGLE_SUBSTITUTION, L"&Toggle - Ctrl + T");

HMENU hSubMenuEdit = CreatePopupMenu();
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_UNDO, L"&Undo - Ctrl + Z");
AppendMenu(hSubMenuEdit, MF_SEPARATOR, 0, NULL);
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_DELETE, L"&Delete - Del");
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_CUT, L"&Cut - Ctrl + X");
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_COPY, L"&Copy - Ctrl + C");
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_PASTE, L"&Paste - Ctrl + V");
AppendMenu(hSubMenuEdit, MF_SEPARATOR, 0, NULL);
AppendMenu(hSubMenuEdit, MF_STRING, ID_EDIT_ALL, L"&Select All - Ctrl + A");

AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenuFile, L"&File");
AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenuEdit, L"&Edit");
AppendMenu(hMenu, MF_POPUP, (UINT_PTR)hSubMenuCode, L"&Code");


SetMenu(hwnd, hMenu);

ShowWindow(hwnd, nCmdShow);
UpdateWindow(hwnd);

MSG msg = {};
while (GetMessage(&msg, NULL, 0, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}

return msg.wParam;
}