Variable Entry: ERROR

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Variable Entry: ERROR

Name

*error*

Class

Special variable / error hook

Value Type

A function of one string argument, or nil.

Initial Value

Implementation-dependent.

Description

When defined, handles errors signaled to the AutoLISP environment.

Recovery and Handling

Typical uses include restoring system variables, cleanup, and filtering cancel messages.

Compatibility

Central across AutoCAD-compatible behavior; also documented by BricsCAD.

Availability

AutoCAD 2026: documented (per Autodesk reference page).
BricsCAD V26: presumed compatible (no contradicting page found).
Status: AutoCAD documented; BricsCAD presumed-both pending Phase 4 verification.

Source Notes

[*error* (AutoLISP)](https://help.autodesk.com/cloudhelp/2023/ENU/AutoCAD-AutoLISP-Reference/files/GUID-CF913180-17CC-43C7-B89F-3BC82FFBEFB9.htm)
[About Using the error Function (AutoLISP)](https://help.autodesk.com/cloudhelp/2023/ENU/AutoCAD-AutoLISP/files/GUID-2AC47A3C-7E80-414D-9134-EABA0003193F.htm)
[BricsCAD *error*](https://developer.bricsys.com/bricscad/help/en_US/V25/DevRef/source/error.htm)
Status: documented.