internal static extern void CaptureOverlayStateListenerHelper_SetOnCaptureOverlayStateChangedCallback(HandleRef self, OnCaptureOverlayStateChangedCallback callback, IntPtr callback_arg);
 internal static extern void CaptureOverlayStateListenerHelper_SetOnCaptureOverlayStateChangedCallback(
     HandleRef self,
     /* from(RealTimeEventListenerHelper_OnCaptureOverlayStateChangedCallback_t) */ OnCaptureOverlayStateChangedCallback callback,
     /* from(void *) */ IntPtr callback_arg);