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Expanding CAD Application Reach with IcARX

February 20, 2026 · progeCAD USA

The IntelliCAD Technology Consortium has introduced IcARX, an ObjectARX-compatible C++ API that allows developers to run existing ARX applications on progeCAD with little to no code changes. By recompiling ARX source code using the IcARX SDK, developers can preserve functionality and behavior while extending compatibility beyond AutoCAD.

Why IcARX Matters

IcARX enables developers to:

Because progeCAD is a full-featured DWG-compatible CAD platform, applications can operate across multiple environments without disrupting user workflows.

Part of progeCAD's Developer Ecosystem

IcARX is one component of progeCAD's multi-API framework, which also includes SDS, IRX, COM automation, .NET, and AutoLISP support. Together, these options give developers flexibility when modernizing or maintaining CAD extensions.

Compatibility and Next Steps

With tens of thousands of exposed functions and growing parity with ObjectARX, IcARX already supports core database and geometry operations, with ongoing enhancements guided by developer feedback.

Bottom line: IcARX provides a fast, practical path to bring ARX applications into the progeCAD ecosystem, helping developers reach more users while preserving existing code and workflows.

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