osx man page for acquire_screen

acquire_screen(3alleg4) 					  Allegro manual					   acquire_screen(3alleg4)

NAME
       acquire_screen - Shortcut of acquire_bitmap(screen); Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       void acquire_screen();

DESCRIPTION
       Shortcut version of acquire_bitmap(screen);

SEE ALSO
       acquire_bitmap(3alleg4), release_bitmap(3alleg4), release_screen(3alleg4)

Allegro 							   version 4.4.2					   acquire_screen(3alleg4)