二维CAD绘图平台控件，完全自主开发，可用于任何语言解析DWG文件格式-CAD drawing two-dimensional platform control, completely self-development, can be used to resolve any language DWG file format

可显示dwg文件的控件，里面有例子可直接运行，能实现查看，拖动，放大缩小等-Dwg files can be displayed controls, which are examples of direct operation, can achieve view, drag, zoom, etc.