The following table provides summary descriptions of the AutoLISP ActiveX collection manipulation functions.
Collection manipulation functions  | 
                  |
|---|---|
Function  | 
                     Description  | 
                  
(vlax-for symbol collection [ expression1 [ expression2 ...]])  | 
                     Iterates through a collection of objects, evaluating each expression (VLISP Function)  | 
                  
(vlax-map-collection obj function)  | 
                     Applies a function to all objects in a collection  |