if (!hwnd) std::cerr << "Failed to create message window.\n"; return 1;

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

// Get current DEVMODE for the given monitor (by device name) DEVMODE GetCurrentDevMode(const std::string& deviceName) DEVMODE dm = 0 ; dm.dmSize = sizeof(dm); std::wstring wDevice(deviceName.begin(), deviceName.end()); EnumDisplaySettingsW(wDevice.c_str(), ENUM_CURRENT_SETTINGS, &dm); return dm;

return DefWindowProc(hwnd, msg, wParam, lParam);