control-event%

A control-event% object contains information about a control event. An instance of control-event% is always provided to a control or menu item callback procedure.

• (make-object control-event% event-type) -> control-event% object
      event-type : symbol in '(button check-box choice list-box list-box-dclick text-field text-field-enter menu slider radio-box)

  The event-type argument is one of the following:

  • 'button -- for button% clicks
  • 'check-box -- for check-box% toggles
  • 'choice -- for choice% item selections
  • 'list-box -- for list-box% selections and deselections
  • 'list-box-dclick -- for list-box% double-clicks
  • 'text-field -- for text-field% changes
  • 'text-field-enter -- for single-line text-field% Enter event
  • 'menu -- for selectable-menu-item<%> callbacks
  • 'slider -- for slider% changes
  • 'radio-box -- for radio-box% selection changes

  This value is extacted out of a control-event% object with the get-event-type method.

  
  

• get-event-type
• set-event-type

• get-event-type from control-event%
• get-time-stamp from event%
• set-event-type from control-event%
• set-time-stamp from event%