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Its kinda GDI question. I have a 16bpp bitmap and I want to copy it to a 24bpp bitmap? I tried this way but its not working, does anyone sees a problem? I get NULL as the bits of the second bitmap. (I have a source DC from which I create the original 16bpp bitmap) CDC l_oCompatibleDC; l_oCompatibleDC.CreateCompatibleDC(a_opSourceDC); CBitmap l_oBmp; l_oBmp.CreateCompatibleBitmap(a_opSourceDC,,; CBitmap* l_opOldBmp=l_oCompatibleDC.SelectObject(&l_oBmp); if (!l_oCompatibleDC.BitBlt(0,0,,,a_opSourceDC,0,0,SRCCOPY)) { return FALSE; } // now I want to copy the bitmap to a 24bpp bitmap CBitmap l_o24BppBitmap; l_o24BppBitmap.CreateBitmap(,,1,24,NULL); CDC l_oDC; l_oDC.CreateCompatibleDC(a_opSourceDC); CBitmap* l_opOldBmp1=l_oDC.SelectObject(&l_o24BppBitmap); l_oDC.BitBlt(0,0,,,&l_oCompatibleDC,0,0,SRCCOPY); l_oCompatibleDC.SelectObject(l_opOldBmp); l_oDC.SelectObject(l_opOldBmp1);

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