protected abstract void Call_MessageReceived(
	Object sender,
	InstantMessage e
)

Protected MustOverride Sub Call_MessageReceived ( 
	sender As Object,
	e As InstantMessage
)

protected:
virtual void Call_MessageReceived(
	Object^ sender, 
	InstantMessage^ e
) abstract

abstract Call_MessageReceived : 
        sender : Object * 
        e : InstantMessage -> unit