DOKK / manpages / debian 10 / allegro4-doc / is_system_bitmap.3alleg4.en
is_system_bitmap(3alleg4) Allegro manual is_system_bitmap(3alleg4)

is_system_bitmap - Tells if a bitmap is a system bitmap or sub bitmap. Allegro game programming library.

#include <allegro.h>

int is_system_bitmap(BITMAP *bmp);

Returns TRUE if bmp is a system bitmap object, or a sub-bitmap of one.

create_system_bitmap(3alleg4), create_sub_bitmap(3alleg4)

version 4.4.2 Allegro