有放大功能的视图,可以滚动,并且优化更新区域算法,效率高

实现了图像的基本变换，是一个cpp的文件，有基本的语句格式，比较齐全。-The realization of the fundamental transformation of the image is a cpp files, there was a basic statement format, relatively complete.

在mfc中队static空间中图片进行放大缩小功能-In mfc in the realization of static control functions for image zoom