2012

Table Of Contents
ObjectARX
ObjectARX technology provides the foundation for design software applications
to share intelligent object data. You can run third-party ObjectARX application
programs or write your own.
Overview of ObjectARX
ObjectARX
®
(AutoCAD Runtime Extension) is a compiled-language
programming environment for developing AutoCAD applications. The
ObjectARX programming environment allows you to load and run your
compiled projects in the same address space as AutoCAD. This allows your
programs to operate directly with core AutoCAD data structures and code.
The ObjectARX libraries allow you to take advantage of the AutoCAD open
architecture, providing direct access to the AutoCAD database structures,
graphics system, and AutoCAD geometry engine to extend AutoCAD classes
and capabilities at runtime. Additionally, you can define new commands that
operate exactly the same way as native AutoCAD commands.
You can use ObjectARX libraries in conjunction with other AutoCAD
programming interfaces, such as AutoLISP or ActiveX, enabling cross-API
integration.
The ObjectARX programming environment is described in the ObjectARX
Developer's Guide. The documentation is part of the ObjectARX Software
Development Kit (SDK), which can be downloaded from the Development
Tools section of the Autodesk website.
For more information, on the InfoCenter toolbar, to the right of the Help
button, click the drop-down arrow. From the menu, click Additional Resources
Developer Help. Click ObjectARX once the Help systems opens.
Use ObjectARX Applications
See also:
Overview of File Organization on page 4
To load an ObjectARX application, you use the Load option of the ARX
command. After loading, all commands defined by this application are
available at the command prompt.
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