WGL_I3D_gamma
https://www.khronos.org/registry/OpenGL/extensions/I3D/WGL_I3D_gamma.txt
WGL_I3D_gamma

	WGL_GAMMA_TABLE_SIZE_I3D 0x204E
	WGL_GAMMA_EXCLUDE_DESKTOP_I3D 0x204F
	BOOL wglGetGammaTableI3D (HDC hDC, int iEntries, USHORT* puRed, USHORT* puGreen, USHORT* puBlue)
	BOOL wglGetGammaTableParametersI3D (HDC hDC, int iAttribute, int* piValue)
	BOOL wglSetGammaTableI3D (HDC hDC, int iEntries, const USHORT* puRed, const USHORT* puGreen, const USHORT* puBlue)
	BOOL wglSetGammaTableParametersI3D (HDC hDC, int iAttribute, const int* piValue)