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(3alleg), joy(3alleg), num_joysticks(3alleg),
exjoy(3alleg)