void (*GetSurfaceDesc)(DDSURFACEDESC2);
void (*SetClipper)(DirectDrawClipper);
// long (*Blt)(RECT, DirectDrawSurface7, RECT, int);
void (*GetSurfaceDesc)(DDSURFACEDESC2);
void (*SetClipper)(DirectDrawClipper);
// long (*Blt)(RECT, DirectDrawSurface7, RECT, int);