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

is_screen_bitmap - Tells if a bitmap is the screen bitmap or sub bitmap. Allegro game programming library.

#include <allegro.h>

int is_screen_bitmap(BITMAP *bmp);

Returns TRUE if bmp is the screen bitmap, or a sub-bitmap of the screen.

screen(3alleg4), create_sub_bitmap(3alleg4)

version 4.4.2 Allegro