php man page for poll_scroll

poll_scroll(3alleg4)						  Allegro manual					      poll_scroll(3alleg4)

NAME
       poll_scroll - Checks the status of a scroll request with triple buffering. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       int poll_scroll();

DESCRIPTION
       This function is used for triple buffering. It checks the status of a hardware scroll previously initiated by the request_scroll() routine.

RETURN VALUE
       Returns non-zero if it is still waiting to take place, and zero if the requested scroll has already happened.

SEE ALSO
       request_scroll(3alleg4), request_video_bitmap(3alleg4), ex3buf(3alleg4), exupdate(3alleg4)

Allegro 							   version 4.4.2					      poll_scroll(3alleg4)