Convert ARX to LSP

Understanding ARX and LSP file formats

ARX files are AutoCAD Runtime Extension modules, typically compiled dynamic link libraries (.dll) used to extend AutoCAD's functionality. They are written in C++ and loaded into AutoCAD to provide custom commands, objects, or features. LSP files, on the other hand, are AutoLISP script files containing code written in the AutoLISP programming language, which is interpreted by AutoCAD to automate tasks or add new commands.

Can you convert ARX to LSP?

Direct conversion from ARX to LSP is not possible because ARX files are compiled binaries, while LSP files are plain text scripts. However, if you have the original source code (C++ for ARX), you can manually rewrite the logic in AutoLISP to create an LSP file. This process is not automated and requires programming knowledge in both languages.

Best approach for ARX to LSP conversion

If you need to replicate ARX functionality in an LSP file, follow these steps:

• Obtain the original C++ source code for the ARX module.
• Analyze the features and logic implemented in the ARX file.
• Rewrite the required features using AutoLISP syntax in a new LSP file.
• Test the LSP file in AutoCAD to ensure it replicates the desired functionality.

Recommended software for editing and testing LSP files

For creating and editing LSP files, use:

• AutoCAD – Built-in support for loading and running LSP files.
• Notepad++ or Visual Studio Code – For editing LSP scripts with syntax highlighting.

To load an LSP file in AutoCAD, use Tools → Load Application or type APPLOAD in the command line.

Summary

There is no automated tool to convert ARX to LSP due to their fundamental differences. Manual rewriting of the logic in AutoLISP is required, and using AutoCAD with a suitable text editor is the best approach for creating and testing LSP files.