The complete ZIP file for ObjectARX creates the subdirectories described here. Several subsets of the SDK are also available for download, so your ObjectARX directory may not contain all of these subdirectories.
The classmap directory contains an AutoCAD drawing illustrating the ObjectARX class hierarchy.
The docs directory contains the ObjectARX online help files. The main file is arxdoc.chm, which includes all the other help files.
The inc directory contains the common ObjectARX header files.
The inc-x64 directory contains the ObjectARX header files for 64-bit operating systems.
The lib-x64 directory contains the ObjectARX library files for 64-bit operating systems.
The Redistrib-x64 directory contains a set of DLLs, some of which may be required for an ObjectARX application to run. Developers should copy the DLLs that they need for application development to a directory in the AutoCAD search path, and package the necessary DLLs with their ObjectARX applications for distribution.
The samples directory contains examples of ObjectARX applications. Samples are grouped into subdirectories according to their programmatic focus. A summary Readme file is provided in the root directory in addition to the Readme files in the individual sample subdirectories. The most significant set of sample ObjectARX applications is in the polysamp subdirectory.
The utils directory contains subdirectories for applications that are extensions to ObjectARX, including brep for boundary representation and ObjARXWiz for the ObjectARX wizards.