Basically question is in title, but let's elaborate a bit:
I have KDE 4.3 from Arch Linux. And a script which periodically downloads new wallpaper. So I'd like to set it as current wallpaper from command line (actually from cron job script, but it's not relevant).
In KDE 3, it was trival with dcop. Now, dcop is gone, and I can't find a way to do it with dbus.
Anybody's got idea how to do it?