C# Signature:

[DllImport("gdi32.dll")]
static extern bool GetDeviceGammaRamp(IntPtr hdc, IntPtr lpRamp);

User-Defined Types:

None.

Notes:

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Tips & Tricks:

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Sample Code:

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

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

    [StructLayout(LayoutKind.Sequential, CharSet=CharSet.Ansi)]
    public struct RAMP
    {
        [ MarshalAs(UnmanagedType.ByValArray, SizeConst=256)]
        public UInt16[] Red;
        [ MarshalAs(UnmanagedType.ByValArray, SizeConst=256)]
        public UInt16[] Green;
        [ MarshalAs(UnmanagedType.ByValArray, SizeConst=256)]
        public UInt16[] Blue;
    }

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