is_memory_bitmap - Tells if a bitmap is a memory bitmap. Allegro game programming library.

       Returns  TRUE  if  bmp is a memory bitmap, ie. it was created by calling create_bitmap() or loaded from a
       grabber datafile or image file. Memory bitmaps can be accessed directly via  the  line  pointers  in  the
       bitmap structure, eg. bmp->line[y][x] = color.

       is_memory_bitmap - Tells if a bitmap is a memory bitmap. Allegro game programming library.

is_linear_bitmap(3alleg4), is_planar_bitmap(3alleg4)

Allegro                                           version 4.4.3                        is_memory_bitmap(3alleg4)

#include<allegro.h>intis_memory_bitmap(BITMAP*bmp);