Draw event arguments for CustomVisualizer
VisualizerDrawEventArgs(VisualizationDataFrame data,Object drawingSession,Windows.Foundation.Size viewExtent,Windows.Foundation.IReference<Windows.Foundation.TimeSpan> presentationTime)
Constructs the object with given parameters
Visualization data
The Win2D drawing session object
The size of the view to be drawn
If present indicates current presentation time (i.e the time position which is currently playing)