class in UnityEngine.Experimental.UIElements
/
Implemented in:UnityEngine.UIElementsModule
Implements interfaces:IEventHandler
Interface for classes capable of having callbacks to handle events.
| HandleEvent | Handle an event, most often by executing the callbacks associated with the event. |
| HasBubbleHandlers | Return true if event handlers for the event propagation bubble up phase have been attached on this object. |
| HasCaptureHandlers | Return true if event handlers for the event propagation capture phase have been attached on this object. |
| RegisterCallback | Add an event handler on the instance. If the handler has already been registered on the same phase (capture or bubbling), this will have no effect. |
| UnregisterCallback | Remove callback from the instance. |
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