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AutoCAD 2026 Developer and ObjectARX
    • Customization and Administration Guides
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    Go to AutoCAD 2026 Help


    AutoLISP/DCL

    AutoLISP

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    • Reference Guide
    • Visual LISP Editor | AutoLISP Extension
    • What's New and Changed | Compatibility

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    • Tiles Reference
    • Predefined Attributes Reference for Tiles

    ActiveX/VBA

    AutoCAD ActiveX Library

    • Developer's Guide
    • Reference Guide | Object Model
    • What's New and Changed | Compatibility

    Additional ActiveX Libraries

    • Sheet Set Object (SSO)
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    Managed .NET/ObjectARX/
    JavaScript

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    • Developer's Guide
    • Reference Guide
    • What's New | Changed | Compatibility

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    • Reference Guide
    • What's New | Changed | Compatibility

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    • Developer's Guide
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    General Resources

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    • DXF Reference

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    • AutoCAD Blog - Basic AutoCAD Customization
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