+ void OnTouch(const TouchEvent& touch);
+
+ /**
+ * Callback for the wheel event when the custom wheel event occurs.
+ * @param[in] wheel The WheelEvent information
+ */
+ bool OnCustomWheelEvent(const WheelEvent& wheel);
+
+ /**
+ * Callback for the wheel event when the wheel event occurs.
+ * @param[in] wheel The WheelEvent information
+ */
+ void OnWheelEvent(const WheelEvent& wheel);