public static void SetDisplayMode(string deviceName, DisplayMode displayMode)
{
DevMode devMode = new DevMode();
devMode.dmSize = (short)Marshal.SizeOf(devMode);
devMode.dmBitsPerPel = displayMode.BitsPerPixels;
devMode.dmPelsWidth = displayMode.Width;
devMode.dmPelsHeight = displayMode.Height;
devMode.dmDisplayFrequency = displayMode.Frequency;
devMode.dmFields = DM.BitsPerPixel | DM.DisplayFrequency | DM.PelsHeight | DM.PelsWidth;
DisplayChange result = User32.ChangeDisplaySettingsEx(deviceName, ref devMode, IntPtr.Zero, ChangeDisplaySettingsFlags.FullScreen, IntPtr.Zero);
}
public static void ResetDisplayMode(string deviceName)
{
DisplayChange result = User32.ChangeDisplaySettingsEx(deviceName, IntPtr.Zero, IntPtr.Zero, ChangeDisplaySettingsFlags.None, IntPtr.Zero);
}