在vc++ 环境下对mapinfo的mif mid数据格式的文件进行操作（本程序附带部分数据方便大家学习）本程序不仅对道路、 等高线、 电力层、 独立地物、居民地、水系、图廓线等图层进行显示，而且实现了 缩放 漫游 开窗放大等基本的功能.是研究mapinfo数据格式的一个很好参考源码。 -In vc++ environment for mapinfo data format of the mif mid file operations (part of the data included in this program to facilitate them to learn) This program not only for the roads, contour lines, power level, independent surface features, the residents, the water system, figure profile and other layers to display, but also achieved roaming window zoom zoom and other basic functions. mapinfo data format is to study a good reference source.