A symbol bound to each item in the collection in turn.
A form which is evaluated to yield a COM
interface pointer that implements the collection protocol.
A form to be evaluated.
Note that for collections whose items are interface pointers, the
s must arrange for each pointer to be released when no longer needed. The
should be a COM interface pointer for an
interface that implements the Collection protocol. The items are converted to Lisp as specified in Data conversion when calling Automation methods.
LispWorks COM/Automation User Guide and Reference Manual - 19 Dec 2011