Function Entry: VLR-ACDB-REACTOR
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Function Entry: VLR-ACDB-REACTOR
Name
vlr-acdb-reactor
Class
Reactor constructor function
Syntax
(vlr-acdb-reactor data callbacks)
Description
Constructs a reactor object that notifies when an object is added to, modified in, or erased from a drawing database.
Return Values
Reactor object.
Side Effects
Registers database-event 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.
Source Notes
- [About Reactor Types and Events (AutoLISP/ActiveX)](https://help.autodesk.com/cloudhelp/2024/CHS/AutoCAD-AutoLISP/files/GUID-EC61BEC2-39B9-4CD1-BE3B-7781DF1E3530.htm)
- [Reactor Functions Reference (AutoLISP/ActiveX)](https://help.autodesk.com/cloudhelp/2026/ENU/AutoCAD-LT-AutoLISP-Reference/files/GUID-B83B512E-CEF6-43C5-9099-398999E254AF.htm)
- Status: documented.