Function Entry: VLR-OBJECT-REACTOR

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Function Entry: VLR-OBJECT-REACTOR

Name

vlr-object-reactor

Class

Reactor constructor function

Syntax

(vlr-object-reactor owners data callbacks)

Description

Constructs a drawing object reactor.

Return Values

Reactor object.

Side Effects

Registers reactor state with the host event system.

Arguments and Values

  • owners: list of VLA-objects monitored by the reactor
  • data: application-specific AutoLISP data
  • callbacks: list of (event-name . callback-function) pairs

Notes

  • Autodesk documents object reactors as associated with specific owner objects.
  • Autodesk documents that callback specifications are event/callback pairs.
  • Autodesk cautions that callbacks should not modify the objects that own the object reactor.

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.