一直困扰cad二次开发人员的多行实体的tooltip的实现-This program demonstrates how to create multiline tooltip in AutoCAD. It demonstrate the use of an AcEdInputPointMonitor reactore to achieve that goal.

本程序使用C#进行supermap二次开发，实现在工作空间里打开CAD数据，并实现图层的放大、缩小、漫游等操作。-The program uses C# for supermap secondary development of open space at work to achieve CAD data, and to achieve layers of enlargement, reduction, roaming and other operations.

cad.net 二次开发General Information about an assembly is controlled through the following // set of attributes. Change these attribute values to modify the information // associated with an assembly.-cad.net 二次开发 objectarx.net