FetchColor

说明：  VC代码实现图片上每点像素的RGB显示，特别适合初学MFC编程的兄弟。我学了一个暑假，发现从例子入手，避开高深的C++理论，是非常有成就感的。(VC code to achieve the image of each point of the RGB pixel display, especially for beginners Brother MFC programming. I learned one summer and found that starting from the example to avoid a complicated C++ theory, it is extremely fulfilling.)