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AutoCAD 2025 for Mac Developer and ObjectARX
    • Customization Guide
    • DXF Reference
    • AutoLISP and DCL
      • AutoLISP: Developer's Guide
      • AutoLISP: Reference
        • Functions Reference (AutoLISP)
        • AutoLISP Core Functions
        • AutoLISP External Functions
        • DCL Reference
        • ActiveX Library Functions (Windows Only)
        • Express Tools Library Functions (AutoCAD for Windows Only)
          • Overview of Express Tools Utility Functions
          • Functions By Functionality
          • acet-ent Functions
          • acet-file Functions
          • acet-help Functions
          • acet-ini Functions
          • acet-load Functions
          • acet-reg Functions
          • acet-ss Functions
          • acet-str Functions
          • acet-sys Functions
            • acet-sys-beep (AutoLISP/Express Tools)
            • acet-sys-command (AutoLISP/Express Tools)
            • acet-sys-foreground (AutoLISP/Express Tools)
            • acet-sys-keystate (AutoLISP/Express Tools)
            • acet-sys-lasterr (AutoLISP/Express Tools)
            • acet-sys-procid (AutoLISP/Express Tools)
            • acet-sys-sleep (AutoLISP/Express Tools)
            • acet-sys-spawn (AutoLISP/Express Tools)
            • acet-sys-term (AutoLISP/Express Tools)
            • acet-sys-wait (AutoLISP/Express Tools)
          • acet-ui Functions
          • acet-util Functions
        • Visual LISP IDE Related Functions (AutoCAD for Windows Only)
      • AutoLISP: Tutorials
    • ObjectARX
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    acet-sys-lasterr (AutoLISP/Express Tools)

    Reports the last error.

    Supported Platforms: AutoCAD for Windows only; not available in AutoCAD LT for Windows, or on Mac OS and Web

    Signature

    (acet-sys-lasterr)

    No arguments.

    Return Values

    Type: Integer

    Error code of the last error encountered by routines in the acetutil library. See winerror.h for details.

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