public static void ChangeResolution(ref DISPLAY_DEVICE device, int width, int height, short bits, int freq)
{
DEVMODE DevM = CreateDevMode();
bool enumResult = false;
DisplayChangeResultCode changeResult = default(DisplayChangeResultCode);
DevM.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL | DM_DISPLAYFREQUENCY;
enumResult = User32.EnumDisplaySettings(device.DeviceName, User32.ENUM_CURRENT_SETTINGS, ref DevM);
DevM.dmPelsWidth = width;
DevM.dmPelsHeight = height;
DevM.dmBitsPerPel = bits;
DevM.dmDisplayFrequency = freq;
DevM.dmDeviceName = device.DeviceName;
changeResult = (DisplayChangeResultCode)User32.ChangeDisplaySettingsEx(device.DeviceName, ref DevM, IntPtr.Zero, (0), IntPtr.Zero);
if (changeResult != DisplayChangeResultCode.DISP_CHANGE_SUCCESSFUL)
{
throw new User32Exception("Failed to change resolution: " + changeResult.ToString());
}
}
public static extern int ChangeDisplaySettingsEx(string lpDeviceName, ref DEVMODE lpDevMode, IntPtr HWND, int dwflags, IntPtr lParam);
public static extern bool EnumDisplaySettings(string lpszDeviceName, uint iModeNum, ref DEVMODE lpDevMode);
public static extern int ChangeDisplaySettings(ref DEVMODE lpDevMode, int dwFlags);
public DisplaySet(DISPLAY_DEVICE DisplayDevice, DEVMODE DeviceMode)
{
this.DisplayDevice = DisplayDevice;
this.DeviceMode = DeviceMode;
}