public delegate void BarCustomDrawEventHandler( object sender, BarCustomDrawEventArgs e );
Public Delegate Sub BarCustomDrawEventHandler( sender As Object, e As BarCustomDrawEventArgs )
The source of the event (typically, the object whose content is being painted).
A BarCustomDrawEventArgs object that contains data related to the event.
When you create a BarCustomDrawEventHandler delegate, you identify the method that will handle the event. To associate the event with your event handler, add an instance of the delegate to the event. The event handler is called whenever the event occurs, unless you remove the delegate.