/* public static void TurnOffDevice(int devNum, Devmode mode)
* {
* var result = NativeMethods.TurnOffMonitorEx(GetDeviceName(devNum), int null, int null, 0, int null);
* if (result > 0)
* return;
* }*/
public static void SetGamma(int gamma)
{
if (gamma <= 256 && gamma >= 1)
{
DisplayDevice.RAMP ramp = new DisplayDevice.RAMP();
ramp.Red = new ushort[256];
ramp.Green = new ushort[256];
ramp.Blue = new ushort[256];
for (int i = 1; i < 256; i++)
{
int iArrayValue = i * (gamma + 128);
if (iArrayValue > 65535)
{
iArrayValue = 65535;
}
ramp.Red[i] = ramp.Blue[i] = ramp.Green[i] = (ushort)iArrayValue;
}
NativeMethods.SetDeviceGammaRamp(NativeMethods.GetDC(IntPtr.Zero), ref ramp);
}
}
public static extern bool SetDeviceGammaRamp(IntPtr hDC, ref DisplayDevice.RAMP lpRamp);