Object-Handling Functions Reference (AutoLISP/ActiveX)

Note: ActiveX support in AutoLISP is limited to Windows only; not available on Mac OS or Web.

The following table provides summary descriptions of the AutoLISP ActiveX object-handling functions.

ActiveX Object-handling functions		Platforms
		Windows		Mac OS		Web
Function	Description	AutoCAD	AutoCAD LT	AutoCAD	AutoCAD LT	AutoCAD
(vlax-dump-object obj)	Lists an object's methods and properties	✓	✓	--	--	--
(vlax-erased-p obj)	Determines whether an object was erased	✓	✓	--	--	--
(vlax-get-acad-object)	Retrieves the top-level AutoCAD application object for the current AutoCAD session	✓	✓	--	--	--
(vlax-method-applicable-p obj method)	Determines if an object supports a particular method	✓	✓	--	--	--
(vlax-object-released-p obj)	Determines if an object has been released	✓	✓	--	--	--
(vlax-read-enabled-p obj)	Determines whether an object can be read	✓	✓	--	--	--
(vlax-release-object obj)	Releases a graphical object	✓	✓	--	--	--
(vlax-typeinfo-available-p obj)	Determines whether type library information is present for the specified type of object	✓	✓	--	--	--
(vlax-write-enabled-p obj)	Determines whether an AutoCAD drawing object can be modified	✓	✓	--	--	--