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)
'tab-panel – for tab-panel% tab changes
See get-time-stamp for information about time-stamp.
Returns the type of the control event. See control-event% for information about each event type symbol.
Sets the type of the event. See control-event% for information about each event type symbol.