Describes a color key as a range of values.
Specifies the lower bound of the color key range.
Specifies the upper bound of the color key range.
This structure is used by the Video Mixing Renderer (VMR) filter. The VMR uses this structure to support the DirectDraw capability of specifying a range of values for a color key by using two DWORDs. The VMR and the graphics card automatically determine whether the two DWORDs are interpreted as RGB or YUV color space values. Not all hardware may support this capability. To ensure compatibility with all hardware, set dw1 and dw2 to the same value.
|Windows XP or later|