[C#]	public event WPFHotSpotEventHandler MouseDownHotSpot;
[VB]	Public Event MouseDownHotSpot As WPFHotSpotEventHandler

This event occurs when the mouse cursor is over a hot spot on the chart image and the mouse button is pressed.

WPFHotSpotEventHandler is a delegate representing the signature of the method that can be used to handle the hot spot events. For its declaration, please refer to WPFChartViewer.ClickHotSpot.