Releasing Objects and Freeing Memory

Using Visual LISP Functions with ActiveX Methods

Converting between Enames and VLA-objects

 

AutoLISP Developer's Guide > Using the Visual LISP Environment > Working with ActiveX > Using Visual LISP Functions with ActiveX Methods > 

Converting Object References

There are a number of ways to refer to AutoCAD drawing objects with AutoLISP. These include the following:

• VLA-objects, returned by ActiveX functions
• Entity names (enames), returned by entget and entsel, identifying objects in an open drawing
• Handles, returned by handent, which entities retain across AutoCAD sessions
• Object IDs, used by ARX to identify objects

AutoLISP provides functions to convert from one type of object identifier to another.