使得程序的菜单条和工具条可以自动隐藏，当鼠标移到窗口上部时又自动出现，适合于需要动态改变窗口和工具条的应用程序。-makes the menu of procedures and tools can be hidden automatically when the mouse is moved to the upper window automatically when, for the need to change the dynamic window and tools of the app