Provided by: allegro4-doc_4.4.3.1-1_all bug


       poll_mouse - Polls the mouse. Allegro game programming library.


       #include <allegro.h>

       int poll_mouse();


       Wherever  possible,  Allegro will read the mouse input asynchronously (ie.  from inside an
       interrupt handler), but on some platforms that may not be possible, in which case you must
       call  this  routine  at regular intervals to update the mouse state variables. To help you
       test your mouse polling code even if you  are  programming  on  a  platform  that  doesn't
       require  it,  after  the  first  time that you call this function Allegro will switch into
       polling mode, so from that point onwards you will have to call this routine  in  order  to
       get  any mouse input at all, regardless of whether the current driver actually needs to be
       polled or not.


       Returns zero on success, or a negative number on failure (ie. no mouse driver installed).


       mouse_needs_poll(3alleg4),  install_mouse(3alleg4),  mouse_x(3alleg4),  exlights(3alleg4),
       exmouse(3alleg4), exshade(3alleg4), exspline(3alleg4), extrans(3alleg4)