public void InitializeCommit(VideoFrame videoFrame, PointF point) { magnifier.InitializeCommit(point); IInitializable initializable = hitDrawing as IInitializable; if (initializable == null || !initializable.Initializing) { return; } string key = initializable.InitializeCommit(point); if (string.IsNullOrEmpty(key)) { return; } ITrackable trackable = hitDrawing as ITrackable; if (trackable != null) { trackabilityManager.AddPoint(trackable, videoFrame, key, point); } }