- joystick-get-button joystick button-numprocedure
Signals an exception of kind (exn bounds) if button-num is less than 0 or greater than the last button on the joystick (see joystick-num-buttons).
Signals an exception of kind (exn bounds) if button-num is less than 0 or greater than the last button on the joystick (see joystick-num-buttons).