typedef struct _DDCOLORKEY{
DWORD dwColorSpaceLowValue;
DWORD dwColorSpaceHighValue;
} DDCOLORKEY,FAR* LPDDCOLORKEY;
Describes a source color key, destination color key, or color space. A color key is specified if the low and high range values are the same. This structure is used with the IDirectDrawSurface2::GetColorKey and IDirectDrawSurface2::SetColorKey methods.
Low value, inclusive, of the color range that is to be used as the color key.
High value, inclusive, of the color range that is to be used as the color key.