Return the refguid object for a named COM interface.
The refguid object matching interface-name.
com-interface-refguid returns a refguid object that matches interface-name, which should be a symbol as described in The mapping from COM names to Lisp symbols. This definition of this COM interface must have been converted to Lisp FLI definitions as in Generating FLI definitions from COM definitions or Including Automation in a Lisp application.
LispWorks COM/Automation User Guide and Reference Manual - 14 Feb 2015