vc++编写的鼠标键盘消息的拦截程序，运用钩子实现

快速截屏程序，采用鼠标钩子绘制界面。每秒30次，以达到更好的视觉效果-Quick screen capture programs, using the mouse hook to draw the interface. 30 times per second in order to achieve better visual effect

VC++屏幕取色器（或鼠标钩子）,拖动鼠标就可以获取屏幕任意一点的的颜色-VC++ color picker screen (or mouse hook), drag the mouse to get the color of any point on the screen