- joy-button-event-state eventprocedure
- set! (joy-button-event-state event) valsetter
- joy-button-event-state-set! event valsetter
Get or set the value of the event's "state" field, as a boolean indicating whether the button was pressed (#t) or released (#f). You can also find out by checking the event type: 'joy-button-down for pressed, or 'joy-button-up for released.