Function main

SnapKey.cpp:102–159

Main entry

// Main entry
int main() {
    if (!LoadConfig("config.cfg")) {
        return 1;
    }

    hMutex = CreateMutex(NULL, TRUE, TEXT("SnapKeyMutex"));
    if (GetLastError() == ERROR_ALREADY_EXISTS) {
        MessageBox(NULL, TEXT("SnapKey is already running!"), TEXT("SnapKey"), MB_ICONINFORMATION | MB_OK);
        return 1;
    }

    WNDCLASSEX wc = {0};
    wc.cbSize = sizeof(WNDCLASSEX);
    wc.lpfnWndProc = WndProc;
    wc.hInstance = GetModuleHandle(NULL);
    wc.lpszClassName = TEXT("SnapKeyClass");

    if (!RegisterClassEx(&wc)) {
        MessageBox(NULL, TEXT("Window Registration Failed!"), TEXT("Error"), MB_ICONEXCLAMATION | MB_OK);
        ReleaseMutex(hMutex);
        CloseHandle(hMutex);
        return 1;
    }

    HWND hwnd = CreateWindowEx(0, wc.lpszClassName, TEXT("SnapKey"), WS_OVERLAPPEDWINDOW,
                               CW_USEDEFAULT, CW_USEDEFAULT, 240, 120,
                               NULL, NULL, wc.hInstance, NULL);

    if (hwnd == NULL) {
        MessageBox(NULL, TEXT("Window Creation Failed!"), TEXT("Error"), MB_ICONEXCLAMATION | MB_OK);
        ReleaseMutex(hMutex);
        CloseHandle(hMutex);
        return 1;
    }

    InitNotifyIconData(hwnd);

    hHook = SetWindowsHookEx(WH_KEYBOARD_LL, KeyboardProc, NULL, 0);
    if (hHook == NULL) {
        MessageBox(NULL, TEXT("Failed to install hook!"), TEXT("Error"), MB_ICONEXCLAMATION | MB_OK);
        ReleaseMutex(hMutex);
        CloseHandle(hMutex);
        return 1;
    }

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

    UnhookWindowsHookEx(hHook);
    Shell_NotifyIcon(NIM_DELETE, &nid);
    ReleaseMutex(hMutex);
    CloseHandle(hMutex);

    return 0;
}