Ah - but if you just want to monitor messages and then emulate the same message to emulate a function then that is easy, but be wary that many functions occur through sequences of messages.

But for eg Close all Windows, that should be easy. Just monitor the ibus when you send the "Close al Windows" command from your key's remote, and then analyse the ibus to see where the message was, who sent it to whom and what the devices said, and what the responses were.