Return the specified axis position, from -100 to 100.
Return the number of buttons on the specified joystick.
Return the specified joystick's name, vendor ID, and product ID.
Return whether the joystick provides the specified axis.
Query the pressed state of the specified joystick button; indices start at zero.
Return whether the specified joystick is connected; indices start at zero.
Refresh joystick state manually; window event processing also refreshes it.
Joystick device identification information.