Function Entry: VLR-UNDO-REACTOR

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Function Entry: VLR-UNDO-REACTOR

Name

vlr-undo-reactor

Class

Reactor constructor function

Syntax

(vlr-undo-reactor data callbacks)

Description

Constructs an editor reactor object that notifies of an undo event.

Return Values

Reactor object.

Side Effects

Registers undo callbacks with the host event system.

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.