internal void OnKeyFrameMoving(KeyFrame frameSelected)
		{
			KeyFrameEventArgs e = new KeyFrameEventArgs(frameSelected);
			if (KeyFrameMoving != null) KeyFrameMoving(this, e);
		}
		internal void OnCurrentFrameMoved(KeyFrame frameSelected)
		{
			KeyFrameEventArgs e = new KeyFrameEventArgs(frameSelected);
			if (CurrentFrameMoved != null) CurrentFrameMoved(this, e);
		}
		internal void OnKeyFrameRemoved(KeyFrame frameSelected)
		{
			KeyFrameEventArgs e = new KeyFrameEventArgs(frameSelected);
			if (KeyFrameRemoved != null) KeyFrameRemoved(this, e);
		}