Data Conversion Functions Reference (AutoLISP/ActiveX)

Note: ActiveX support in AutoLISP is limited to Windows only.

The following table provides summary descriptions of the AutoLISP ActiveX data conversion functions.

Data conversion functions
Function	Description
(vlax-3D-point list)	Creates an ActiveX-compatible 3D point structure
(vlax-ename->vla-object entname)	Transforms entity to VLA-object
(vlax-make-safearray type '(l-bound . u-bound) ['( l-bound . u-bound) ...])	Creates a safearray
(vlax-make-variant value type)	Creates a variant data type
(vlax-safearray-fill var 'element-values)	Stores elements in a safearray
(vlax-safearray-get-dim var)	Returns the number of dimensions in a safearray object
(vlax-safearray-get-element var element)	Returns an element from an array
(vlax-safearray-get-l-bound var dim)	Returns the lower boundary (starting index) of a dimension of an array
(vlax-safearray-get-u-bound var dim)	Returns the upper boundary (end index) of a dimension of an array
(vlax-safearray-put-element var element value)	Adds or updates an element in an array
(vlax-safearray-type var)	Returns the data type of a safearray
(vlax-safearray->list var)	Returns the elements of a safearray in list form
(vlax-tmatrix list)	Returns a suitable representation for a 4 x 4 transformation matrix to be used in VLA methods
(vlax-variant-change-type var type)	Returns the value of a variant after changing it from one data type to another
(vlax-variant-type var)	Returns the data type of a variant
(vlax-variant-value var)	Returns the value of a variant
(vlax-vla-object->ename obj)	Transforms a VLA-object to an AutoLISP entity