ListBoxExOnBeforeDrawItem 委托

public delegate void OnBeforeDrawItem(
	Object sender,
	ListBoxObjectCollection items,
	DrawItemEventArgs e
)

Public Delegate Sub OnBeforeDrawItem ( 
	sender As Object,
	items As ListBoxObjectCollection,
	e As DrawItemEventArgs
)

type OnBeforeDrawItem = 
    delegate of 
        sender : Object * 
        items : ListBoxObjectCollection * 
        e : DrawItemEventArgs -> unit