lock_bitmap - Locks the memory used by a bitmap. Allegro game programming library.

       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)

       lock_bitmap - Locks the memory used by a bitmap. Allegro game programming library.

#include<allegro.h>voidlock_bitmap(BITMAP*bitmap);