This function enables transparent blitting using a chroma-key color or chroma-keying on a color space range. DiveSetTransparentBlitMode must be called before calling DiveSetupBlitter.
#include <dive.h>
HDIVE hDiveInst; /* Display engine DIVE instance. */
ULONG ulTransBlitMode; /* Transparent blit mode. */
ULONG ulValue1; /* Minimum value in range. */
ULONG ulValue2; /* Maximum value in range. */
ULONG rc; /* Return codes. */
rc = DiveSetTransparentBlitMode(hDiveInst,
ulTransBlitMode, ulValue1, ulValue2);