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)