3.1.44 @receiver

Receiver of event/message

The var object @receiver refers to the object that is receiving an event. A new value of receiver is pushed if a message is invoked from a gesture object or handler object. In this case, @receiver refers to the (graphical) object that received the event. See handler->event, @event and constant<-receiver.

@receiver is commonly used to create reusable gestures. For example:

?- new(@clicked,
           click_gesture(left, '', single,
                                         message(@receiver,
                                                         clicked))).

If this recogniser object is associated to a graphical object, the object will receive a ->clicked message when the user left-clicks the object.

See also

@arg1