interface in UnityEngine.Experimental.UIElements
マニュアルに切り替えるInterface for class capable of handling events.
| HandleEvent | Handle an 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. |
| OnLostCapture | Callback executed when the event handler loses the capture. |