// 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;
// 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; monitor default-monitor for windows 10 x64
std::cout << "\n=== Default Monitor Info ===\n"; std::cout << "Name : " << deviceName << "\n"; std::cout << "Resolution : " << width << " x " << height << "\n"; std::cout << "Refresh : " << dm.dmDisplayFrequency << " Hz\n"; std::cout << "Scale : " << std::fixed << std::setprecision(1) << scale << "x (" << dpiX << " DPI)\n"; std::cout << "Orientation: " << orientation << "\n"; std::cout << "Is Primary : Yes (default monitor)\n"; std::cout << "============================\n"; // Get current DEVMODE for the given monitor
// Global flag to indicate changes volatile BOOL g_bChanged = TRUE; dm.dmSize = sizeof(dm)
// Initial print PrintDefaultMonitorInfo();