How to prepare an IN/OUT-Variant

Hello List,

A short request about (DLLCC or: [COM-Connect]) from: aNewbie.

I want to call a method from a dll-file on Windows-XP. The method is described as:  (from the COMAutomationTypeAnalyzer)

…

#( 'method' 'getChangedData' 16r13A

                                               #typeCode: #VT_VARIANT

                                               #parameterTypes: #( #( #VT_VARIANT #VT_BYREF ) )

                                               #parameterNames: #( 'Backstring' )

                                               )

…

Note: There is no header-File available!

My questions:

Can I use COMAutomationObjectController as superClass or ExternalInterface?

How can I implement the corresponding Smalltalk-method in my Subclass, and how to initialize the “Backstring”- Parameter?

Thanks for any help

Cheers

Jens