How can I check if Skype is running and there's an active call taking place?

Question

How can I check if Skype is running and there's an active call taking place?
I need this to shut down Skype before making automatic backup (otherwise files are locked on exFAT so I can't make backup) but only if I don't break an active call.

Platform is Windows Vista.

Answer 1

You can communicate with Skype through their API. They have a variety of methods of doing this - including COM, Java, and Python - the "kick start guide" is a good place to start reading (and there's a link to the API tracer, where you can basically interactively work with Skype via text commands).

A very rough way to do it would be to do a "SEARCH CALLS", then run through each call and check what the current status is. I only looked at the API for a couple of minutes, so a more thorough look would probably get a more efficient method.