Allows you to examine the return value an AutoLISP expression or object.
Note: The Visual LISP IDE is available on Windows only.
Summary
In Visual LISP, click View 
Inspect.
List of Options
- Inspect box
-
Specifies the AutoLISP object or expression to inspect, you use the drop-down list to select a previously entered object or expression.
Click OK to view the return value of the object or expression in the Inspect window.
- Message box
-
Displays a standard AutoLISP error message when the entered expression cannot be evaluated.