Provided by: allegro4-doc_4.4.2-13_all bug

NAME

       poll_joystick - Polls the joystick. Allegro game programming library.

SYNOPSIS

       #include <allegro.h>

       int poll_joystick();

DESCRIPTION

       The  joystick handler is not interrupt driven, so you need to call this function every now
       and again to update the global position values. Example:

          do {
             /* Get joystick input */
             poll_joystick();

             /* Process input for the first joystick */
             if (joy[0].button[0].b)
                first_button_pressed();

             if (joy[0].button[1].b)
                second_button_pressed();
             ...
          } while(!done);

RETURN VALUE

       Returns zero on success or a negative number  on  failure  (usually  because  no  joystick
       driver was installed).

SEE ALSO

       install_joystick(3alleg4), joy(3alleg4), num_joysticks(3alleg4), exjoy(3alleg4)