WIN CE透明控件，编译环境EVC，经测试通过，有不足之处见谅-WIN CE transparent control, the compiler environment EVC, has been tested and approved, will be forgiven inadequacies

用C#做出的有透明背景的按钮，实现该功能可以参考下这个例子。-Have used C# to make the button transparent background, to achieve this function can refer to this example.