indexing description: "COM Queriable" status: "See notice at end of class" date: "$Date$" revision: "$Revision$" deferred class interface ECOM_QUERIABLE feature -- Access exists: BOOLEAN -- Is wrapped structure initialized? item: POINTER -- Pointer to COM object wrapper. invariant queriable_invariant: initializer /= default_pointer and then exists -- from ANY reflexive_equality: standard_is_equal (Current) reflexive_conformance: conforms_to (Current) end -- class ECOM_QUERIABLE