windows编程实现滚动条的相关操作，基层技术，底层开发。-scroll bar of windows programming related operations, basic technical, low-level development.

用于卡通图缩小放大以及各个映射模式的转换问题，Windows编程上机题-Used for the cartoon figure narrow amplification and all the conversion of the mapping, Windows computer programming problem

关于vc windows编程的工具条编程，可以用来了解工具条编程的方法-About vc programming, Windows programming toolbar can be used to understand the toolbar programming method