A complete implementation of the i-unknown interface.
standard-i-unknown provides a complete implementation of the i-unknown interface.
The class provides a reference count for the object which calls the generic function
com-object-initialize when the object is given a reference count and
com-object-destructor when it becomes zero again. These generic functions can be specialized to perform initialization and cleanup operations.
The class also provides an implementation of
query-interface which calls the generic function
com-object-query-interface. The default method handles
i-unknown and all the interfaces specified by the
define-com-implementation form for the class of the object.
LispWorks COM/Automation User Guide and Reference Manual - 14 Feb 2015