3.14  control-event%

Superclass: 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.

• (instantiate control-event% () (event-type _) [(time-stamp _)]) -> 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)
   time-stamp = 0 : exact integer

  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

  • 'menu-popdown -- for popup-menu% callbacks (item selected)

  • 'menu-popdown-none -- for popup-menu% callbacks (no item selected)

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

  See the corresponding get- and set- methods for information about time-stamp.

  
  

Methods
    get-event-type
    set-event-type

All Methods
    get-event-type from control-event%
    get-time-stamp from event%
    set-event-type from control-event%
    set-time-stamp from event%