基于DWGdirectX和vc6平台开发的dwg读写小程序，可实现dwg读入，写出，简单绘图等功能-Based DWGdirectX and vc6 platform development dwg to read and write small programs can be realized dwg read, write, simple graphics functions

DWGdirect DRX SDK 帮助文件-The DWGdirect DRX SDK is a package that allows users to create extensions for DWGdirect-based applications. DRX applications can access the data in a DWG/DXF drawing file, add custom commands to the global DWGdirect command sta