Cross Application Programming in QT

[acxdotfm]

It looks like the best cross platform route would be sockets (I just noticed that great example after installing the binary version instead of building the source only) To my knowledge, I should be able to set a listener on the socket, and then any type of application can send information to that socket, regardless of language or platform, right?

[wysota]

Yes, although this is both advantage and disadvantage. It depends what you want really... If you want to provide some service for other application, a more high-level approach such as xml-rpc could be better.

[spud]

I'd look into what the last.fm scrobbler uses. It is open source, based on Qt and has the exact functionality you describe(for music, not videos).