ObjectARX

The ObjectARX® programming environment provides object-oriented C++, C#, and VB .NET application programming interfaces for developers to use, customize, and extend AutoCAD® software and AutoCAD-based products, such as AutoCAD® Architecture, AutoCAD® Mechanical, and AutoCAD® Land Desktop software.

ObjectARX programming environment libraries provide versatile sets of tools for application developers to take advantage of the open architecture of AutoCAD software. They also provide direct access to the AutoCAD database structures, graphics system, and native command definition.

ObjectARX technology helps you develop fast, efficient, compact applications. It enables power users to customize AutoCAD software and frees CAD designers from repetitive tasks. Smaller files, faster drawing operations, and smooth interoperability make an application built with ObjectARX programming environment your best choice for a design software solution.

• What's New
  Learn more about what has changed for ObjectARX developers in AutoCAD® 2010 software.
• Frequently Asked Questions
  Frequently asked questions about the ObjectARX programming environment from Autodesk.
• License & Download
  Download and get a license for the ObjectARX programming environment from Autodesk.
• System Requirements
  Find out about the recommended system requirements for running the ObjectARX programming environment.
• Join the Autodesk ObjectARX Discussion Group
  Get tips, ask questions, and exchange ideas with other ObjectARX users.