说明：  使用VB6.0在Windows Vista下实现全磨砂玻璃窗口。顺便提一下，此代码在Windows Vista以下版本，2000及以上Windows版本运行时会产生一个很有趣的效果（除控件外窗体客户区背景完全透明！）
(Using VB6.0 in Windows Vista to achieve full frosted glass window. Incidentally, this code in the following versions of Windows Vista, Windows 2000 and above versions of run-time will produce an interesting effect (other than the client area of control outside the form completely transparent background!))