BCGControlBar Pro for MFC
void CBCGPImage::MakePale ( double  dblLum,
BOOL  bUseModifyBitmapLuminosity = FALSE 
)

Makes the image pale.

Parameters
dblLumThe luminescence ratio.
bUseModifyBitmapLuminositySpecifies whether the bitmap luminosity changing algorithm will be used instead of the blending algorithm. By default, this parameter is FALSE.