Function Entry: VLR-TRACE-REACTION
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Function Entry: VLR-TRACE-REACTION
Name
vlr-trace-reaction
Class
Reactor Callback Function
Syntax
(vlr-trace-reaction [args])
Arguments and Values
args: ignored.
Description
A predefined callback function that prints one or more callback arguments to the Trace window. Used during reactor development to inspect callback parameters.
Return Values
Returns nil.
Side Effects
Writes to the Trace window.
Examples
Not documented on the vendor page.
Availability
- AutoCAD 2026: documented.
- BricsCAD V26: presumed compatible.
- Status: AutoCAD documented; BricsCAD presumed-both pending Phase 4 verification.
Source Notes
- [vlr-trace-reaction (AutoLISP 2026)](https://help.autodesk.com/cloudhelp/2026/ENU/AutoCAD-AutoLISP-Reference/files/GUID-489E0189-FCB3-4B6C-95F7-BEFCA4761BDF.htm)
- Status: documented (Phase 3 body fill).