AutoCAD Map 3D ObjectARX SDK Developer Center

ObjectARX® for AutoCAD Map® 3D is the C++ object-oriented application programming interface for AutoCAD Map 3D. It includes C++ libraries for developing AutoCAD Map 3D applications and extending AutoCAD Map 3D functionality. In addition, ObjectARX Managed Wrapper (.NET) Classes present all of ObjectARX as Managed C++, which lets you access ObjectARX functionality using VB.NET, C#, or any other .NET language. ObjectARX for AutoCAD Map also includes a developer's guide, reference documentation, and sample code for both the ObjectARX C++ and .NET interfaces.


Download and get a license for the Autodesk ObjectARX programming environment.

ObjectARX for AutoCAD Map® 3D includes libraries, samples, and online documentation. It downloads as a self-extracting image.

Note that you should first install ObjectARX for AutoCAD, and then install ObjectARX for AutoCAD Map in the same folder. To initiate the download process, complete the ObjectARX® license agreement.

Documentation for AutoCAD Map 3D ObjectARX can be found in the docs folder of your AutoCAD Map 3D ObjectARX installation.



Trial versions are available for most Autodesk products. Download your free 30-days trial version today. You can obtain Autodesk desktop software for development use on an on-going basis by joining ADN.


All the information and resources needed to use Autodesk cloud-based software and components in your own web and mobile applications can be found on the Autodesk Platform Services (formerly Forge) Developer Portal. Get easy access to APIs and documentation, tutorials, GitHub samples, support and more.

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