When overridden in a derived class, starts listening for the event being managed. After StartListening(Object) is first called, the manager should be in the state of calling DeliverEvent(Object, EventArgs) or DeliverEventToList(Object, EventArgs, WeakEventManager..::..ListenerList) whenever the relevant event from the provided source is handled.

protected override sealed void StartListening(
	Object source
)

Protected Overrides NotOverridable Sub StartListening ( _
	source As Object _
)

protected:
virtual void StartListening(
	Object^ source
) override sealed