bionic (3) poll_scroll.3alleg4.gz

Provided by: allegro4-doc_4.4.2-10_all bug

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)