is_same_bitmap(3) Tells if two bitmaps describe the same drawing surface. Allegro game programming library.

SYNOPSIS

#include <allegro.h>

int is_same_bitmap(BITMAP *bmp1, BITMAP *bmp2);

DESCRIPTION

Returns TRUE if the two bitmaps describe the same drawing surface, ie. the pointers are equal, one is a sub-bitmap of the other, or they are both sub-bitmaps of a common parent.