DllImport("gdi32.dll")]
public static extern bool GetDeviceGammaRamp(IntPtr hDC, ref RAMP lpRamp);

[DllImport("gdi32.dll")]
public static extern bool SetDeviceGammaRamp(IntPtr hDC, ref RAMP lpRamp);

 1 [DllImport("dxva2.dll")]
 2 public static extern bool GetNumberOfPhysicalMonitorsFromHMONITOR(IntPtr hMonitor, ref uint pdwNumberOfPhysicalMonitors);
 3
 4 [DllImport("dxva2.dll")]
 5 public static extern bool GetPhysicalMonitorsFromHMONITOR(IntPtr hMonitor,
 6                 uint dwPhysicalMonitorArraySize, [Out] PhysicalMonitor[] pPhysicalMonitorArray);
 7
 8 [DllImport("dxva2.dll")]
 9 public static extern bool DestroyPhysicalMonitors(uint dwPhysicalMonitorArraySize,
10                 [Out] PhysicalMonitor[] pPhysicalMonitorArray);
11
12 [DllImport("dxva2.dll")]
13 public static extern bool GetMonitorTechnologyType(IntPtr hMonitor,
14                 ref McDisplayTechnologyType pdtyDisplayTechnologyType);
15
16 [DllImport("dxva2.dll")]
17 public static extern bool GetMonitorCapabilities(IntPtr hMonitor, ref uint pdwMonitorCapabilities,
18                 ref uint pdwSupportedColorTemperatures);
19
20 [DllImport("dxva2.dll")]
21 public static extern bool SetMonitorBrightness(IntPtr hMonitor, short brightness);
22
23 [DllImport("dxva2.dll")]
24 public static extern bool SetMonitorContrast(IntPtr hMonitor, short contrast);
25
26 [DllImport("dxva2.dll")]
27 public static extern bool GetMonitorBrightness(IntPtr hMonitor, ref short pdwMinimumBrightness,
28                 ref short pdwCurrentBrightness, ref short pdwMaximumBrightness);
29
30 [DllImport("dxva2.dll")]
31 public static extern bool GetMonitorContrast(IntPtr hMonitor, ref short pwdMinimumContrast,
32                 ref short pwdCurrentContrast, ref short pwdMaximumContrast);

DataHandlerClass _cls = new DataHandlerClass();
_CUI_COLOR_DEVICES _screenModel = default(_CUI_COLOR_DEVICES);public AjustScreenByIgfxDHLib()
{CUI_SUPPORTED_CONFIG cui_SUPPORTED_CONFIG = default(CUI_SUPPORTED_CONFIG);uint num = _cls.get_SupportedConfig(ref cui_SUPPORTED_CONFIG);var id = cui_SUPPORTED_CONFIG.DeviceConfig[0].DispDev[0];uint[] array = new uint[3];var a = _cls.get_GetDeviceList(id, array);_screenModel.ulDevices = array[0];_screenModel.Device = new _CUI_COLOR_INFO[3];_screenModel.Device[0].Brightness.color = _COLOR_TYPE.NumColors;_screenModel.Device[0].Contrast.color = _COLOR_TYPE.NumColors;_screenModel.Device[0].Gamma.color = _COLOR_TYPE.NumColors;_screenModel.Command = _CUI_COLOR_COMMAND.GET_COLOR;_cls.get_color(_screenModel.ulDevices, ref _screenModel);
}