Note that if _USE_NEWGAL is not defined, the BITMAP structure has a different definition:
struct _BITMAP { Uint8 bmType; Uint8 bmBitsPerPixel; Uint8 bmBytesPerPixel; Uint8 bmReserved; Uint32 bmColorKey; Uint32 bmWidth; Uint32 bmHeight; Uint32 bmPitch; void* bmBits; Uint32 bmReserved1; };
1.4.2