说明：  VC++仿Windows关机屏变黑特效的源程序，实际上是屏幕由彩色变黑白，而且这一过程是渐变的，本人在网上搜罗过一些与此有关的代码，发现关机的代码差不多都一样，而对关机前的屏幕特效几乎没有涉及到，现在用一种比较笨的方法：制造一个刷子，用灰色刷屏幕，具体请下载查看代码。
(VC++ Windows shutdown screen black imitation effects of the source, is actually a screen by the color change black and white, and this process is gradual, I am collecting some online related to this code, the code that shut down almost all the same, effects on the screen before shutting down almost did not involve, and now with a more stupid way: to create a brush, brush the screen with the gray, concrete, please download the View Code.)