MouseCallbackOnMouseDown Method

Called at the beginning of handling of a mouse down event in Rhino. If you don't want the default Rhino functionality to be run, then set Cancel to true on the passed in event arguments Base class implementation of this function does nothing

protected virtual void OnMouseDown(
	MouseCallbackEventArgs e
)

Protected Overridable Sub OnMouseDown ( 
	e As MouseCallbackEventArgs
)