man is_memory_bitmap () - Tells if a bitmap is a memory bitmap. Allegro game programming library.
NAME
is_memory_bitmap - Tells if a bitmap is a memory bitmap. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
int is_memory_bitmap(BITMAP *bmp);
DESCRIPTION
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.