BCGControlBar Pro for MFC
void CBCGPToolBarImages::ConvertToGrayScale ( double  dblLumRatio = 1.0,
BOOL  bAutoConvertAfterReLoad = FALSE 
)

Converts encapsulated image list to gray scale.

Call this method to gray out the encapsulated image list.

Parameters
dblLumRatioThe image luminacity.
bAutoConvertAfterReLoadTRUE to automatically convert after image reloading.