I want to use the Invoke Node 'Set Control Value' method to pass a COM object interface to a subvi. This requires a type descriptor but I don't see anything in Application Note 154 about this data type.
You can get type descriptor by using the "Flatten to String" VI (Advanced>>Data Manipulation palette). Infact you usually use that VI with "SetControlValue" method.
A Rafiq National Instruments http://www.ni.com/ask
