WeakEventHandler - делегат

public delegate bool WeakEventHandler(
	Type managerType,
	Object sender,
	EventArgs e
)

Public Delegate Function WeakEventHandler ( 
	managerType As Type,
	sender As Object,
	e As EventArgs
) As Boolean

public delegate bool WeakEventHandler(
	Type^ managerType, 
	Object^ sender, 
	EventArgs^ e
)

type WeakEventHandler = 
    delegate of 
        managerType : Type * 
        sender : Object * 
        e : EventArgs -> bool