Browsing automation classes and parameters

Greetings everyone!

I am using the "Browse Automation Classes" option under the COM menu to explore interfaces and I came across this definition in one of our dlls (obviously not Foo -- the name of the func is not relevant):

Simplified Syntax:

Foo: <anInteger> itemList: (<ValueReference on: Array of aString>)

And after trying it out several ways, and experimenting, I can't figure out what <ValueReference on: Array of aString> means in terms of getting an array of strings out of COM and into Smalltalk.

I have tried calling it like this with an Array:

anItemList := Array new: 10.

aDispatchDriver Foo: 9997 itemList: (anItemList asValueReference).

And like this with an OrderedCollection:

anItemList := OrderedCollection new.

aDispatchDriver Foo: 9997 itemList: (anItemList asValueReference).

And like this with a String:

anItemList := String new: 1000.

aDispatchDriver Foo: 9997 itemList: (anItemList asValueReference).

All calls succeed. But there is nothing in anItemList when it returns.

Thanks for your time and take care.