1poll_joystick(3)                Allegro manual                poll_joystick(3)
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NAME

6       poll_joystick - Polls the joystick. Allegro game programming library.
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SYNOPSIS

9       #include <allegro.h>
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12       int poll_joystick();
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DESCRIPTION

15       The  joystick handler is not interrupt driven, so you need to call this
16       function every now and again to  update  the  global  position  values.
17       Example:
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19          do {
20             /* Get joystick input */
21             poll_joystick();
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23             /* Process input for the first joystick */
24             if (joy[0].button[0].b)
25                first_button_pressed();
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27             if (joy[0].button[1].b)
28                second_button_pressed();
29             ...
30          } while(!done);
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RETURN VALUE

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

38       install_joystick(3), joy(3), num_joysticks(3), exjoy(3)
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42Allegro                          version 4.4.3                poll_joystick(3)
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