public class NavigationToolbarRecentHistoryButtonUIElement : Infragistics.Win.DropDownButtonUIElement, Infragistics.Win.UIAutomation.IProvideUIAutomation
'宣言
Public Class NavigationToolbarRecentHistoryButtonUIElement
Inherits Infragistics.Win.DropDownButtonUIElement
Implements Infragistics.Win.UIAutomation.IProvideUIAutomation