Is it confirmed that setpixel only sets 4k colors? Well, I´m tring to set a 64K bitmap, and I´m also getting unsucssesful. I try:

iColorsInt32 = iRgbColors.Value();

I raise another concern. Have you tried to to use CWindowsGc.BitBlt(CFbsBigGc)? I tried with both: CFbsBitmap and CFbsBitGc. I couldn´t see any mention for the last one. Can you explain me?

Thank You.