Comment 2 for bug 323322

Indeed.

Some careful thinking needs to be done about how exactly this should work, as the NewPrinterNotification interface is actually based on the applet providing a D-Bus service -- although I said "signals" earlier, I was not being specific enough.

I don't think that D-Bus service ownership can be passed from one application to another. Perhaps the small C program needs to stay around all the time, providing the D-Bus NewPrinterNotification service on the system bus, and communicating with the applet over a similar interface on the session bus. In this way it would act as a sort of proxy for the applet.

Does that make sense?