'宣言 Public Delegate Sub HistoryItemAddingEventHandler( _ ByVal sender As System.Object, _ ByVal e As HistoryItemAddingEventArgs _ )
'使用法 Dim instance As New HistoryItemAddingEventHandler(AddressOf HandlerMethod)
public delegate void HistoryItemAddingEventHandler( System.object sender, HistoryItemAddingEventArgs e )
パラメータ
- sender
 - The source of the event.
 - e
 - HistoryItemAddingEventArgs object containing event data.