public delegate void DTMFEventHandler(
	Object sender,
	DTMFEvent e
)

Public Delegate Sub DTMFEventHandler ( 
	sender As Object,
	e As DTMFEvent
)

public delegate void DTMFEventHandler(
	Object^ sender, 
	DTMFEvent^ e
)

type DTMFEventHandler = 
    delegate of 
        sender : Object * 
        e : DTMFEvent -> unit