一个模仿windows中的桌面背景预览的控件 这个控件是模仿微软windows操作系统中的显示属性对话框的控件。我作的这个custom控件具有和微软控件一样的功能。

-A parody of the preview windows in the desktop background controls　this control is modeled on Microsoft windows operating system in the Display Properties dialog box control. I made this custom control has the same functionality as Microsoft controls.