Function Entry: VLAX-LDATA-PUT

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Function Entry: VLAX-LDATA-PUT

Name

vlax-ldata-put

Class

Visual LISP persistent-data writer

Syntax

(vlax-ldata-put dictionary key value [private])

Arguments and Values

dictionary — dictionary or object designator supporting ldata.
key — string naming the ldata key.
value — value to persist.
private — privacy selector in Autodesk's ldata protocol.

Autodesk documents value as one of integer, real, string, list, ename, VLA-object, variant, safearray, T, or nil.

Description

Stores persistent AutoLISP data associated with a dictionary or object.

Return Values

Returns value.

Exceptional Situations

Signals an AutoLISP-visible error if the target does not support the requested storage operation.

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

[vlax-ldata-put (AutoLISP/ActiveX)](https://help.autodesk.com/cloudhelp/2022/KOR/AutoCAD-AutoLISP-Reference/files/GUID-D2459C22-223C-4C8E-A69C-F288B8FBFA28.htm)

Notes

If private is non-nil and the call originates from a separate-namespace VLX, Autodesk documents that the data is stored as private to that VLX.

Compatibility

Available on Windows only; not available on macOS or Web.