Provided by: allegro4-doc_4.4.3.1-4.1build3_all 

NAME
lock_bitmap - Locks the memory used by a bitmap. Allegro game programming library.
SYNOPSIS
#include <allegro.h> void lock_bitmap(BITMAP *bitmap);
DESCRIPTION
Under DOS, locks all the memory used by a bitmap. You don't normally need to call this function unless you are doing very weird things in your program. Allegro version 4.4.3 lock_bitmap(3alleg4)