vlax-ldata-delete (AutoLISP/ActiveX)

Erases LISP data from a drawing dictionary

Supported Platforms: Windows only

Signature

(vlax-ldata-delete dict key [private])

dict

Type: VLA-object or String

An object, AutoCAD drawing entity object, or a string naming a global dictionary.

key

Type: String

Dictionary key.

private

Type: T or nil

If a non-nil value is specified for private and vlax-ldata-delete is called from a separate-namespace VLX, vlax-ldata-delete deletes private LISP data from dict.

Return Values

Type: T or nil

T, if successful; otherwise nil (for example, the data did not exist).

Examples

Add LISP data to a dictionary:

(vlax-ldata-put "dict" "key" '(1))
(1)

Use vlax-ldata-delete to delete the LISP data:

(vlax-ldata-delete "dict" "key")
T

If vlax-ldata-delete is called again to remove the same data, it returns nil because the data does not exist in the dictionary:

(vlax-ldata-delete "dict" "key")
nil