void HandleWheelEvent(WheelEvent *);
void HandleWindowEvent(WindowEvent *);
void HandleFingerEvent(FingerEvent *);
void HandleTextEvent(TextEvent *);
void HandlePauseResumeEvent(PauseResumeEvent *);
void HandleWheelEvent(WheelEvent *);
void HandleWindowEvent(WindowEvent *);
void HandleFingerEvent(FingerEvent *);
void HandleTextEvent(TextEvent *);
void HandlePauseResumeEvent(PauseResumeEvent *);