These files comprise an example illustrating various argument passing issues when calling and implementing COM methods. To run the example, follow the instructions in defsys.lisp.
(example-edit-file "com/manual/args/defsys")
(example-edit-file "com/manual/args/args.idl")
(example-edit-file "com/manual/args/args-impl")
(example-edit-file "com/manual/args/args-calling")
LispWorks COM/Automation User Guide and Reference Manual - 14 Feb 2015