DOKK / manpages / debian 11 / allegro4-doc / is_sub_bitmap.3alleg4.en
is_sub_bitmap(3alleg4) Allegro manual is_sub_bitmap(3alleg4)

is_sub_bitmap - Tells if a bitmap is a sub bitmap. Allegro game programming library.

#include <allegro.h>

int is_sub_bitmap(BITMAP *bmp);

Returns TRUE if bmp is a sub-bitmap.

create_sub_bitmap(3alleg4)

version 4.4.3 Allegro