The ActiveX related information is primarily written for those developing VBA applications for use with AutoCAD.
The ActiveX topics assume that you have prior working knowledge of the Visual Basic programming language, and does not attempt to duplicate or replace the abundance of documentation available on the Internet or in books. If you need more information on the Visual Basic and VB.NET programming languages or development environment usage, see the Visual Basic for Applications Help file or the Visual Studio Help system developed by Microsoft, available from the Help menus in the interactive development environments (IDEs).
If you are using ActiveX with a development environment other than VBA and a programming language other than VB or VB.NET, you will need to adapt the information and example code that is presented.