VC++百分比放大缩小图片源码实例，把原图片放大，也可缩小图片，原图已经载入，你只需点击窗口上的放大和缩小按钮即可-VC++ source code examples percentage zoom images, the original image to enlarge, but also out pictures, artwork has been loaded, you simply click on the zoom in and zoom out the window button