Monitor Default-monitor For Windows 10 X64 Apr 2026

// Global flag to indicate changes volatile BOOL g_bChanged = TRUE;

RegisterClass(&wc); HWND hwnd = CreateWindowEx(0, CLASS_NAME, "MonitorWatcher", 0, 0, 0, 0, 0, HWND_MESSAGE, NULL, wc.hInstance, NULL);

// Message loop to process system events MSG msg; while (true) // Wait for messages (with timeout to allow periodic rechecks) DWORD ret = MsgWaitForMultipleObjects(0, NULL, FALSE, 200, QS_ALLINPUT); if (ret == WAIT_OBJECT_0) while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) TranslateMessage(&msg); DispatchMessage(&msg); monitor default-monitor for windows 10 x64

int main() { std::cout << "Windows Default Monitor Watcher\n"; std::cout << "Monitoring for changes... (Press Ctrl+C to exit)\n\n";

return DefWindowProc(hwnd, msg, wParam, lParam); // Global flag to indicate changes volatile BOOL

// Initial print PrintDefaultMonitorInfo();

// Callback for display settings changes LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) switch (msg) case WM_DISPLAYCHANGE: g_bChanged = TRUE; break; case WM_SETTINGCHANGE: if (wParam == SPI_SETWORKAREA) g_bChanged = TRUE; break; HWND hwnd = CreateWindowEx(0

return "Unknown";

// Print current default monitor details void PrintDefaultMonitorInfo() dm.dmDisplayOrientation == DMDO_270) orientation = "Portrait";