Thank you for the hints, I made the semantics more meaningful (in fact I have another class named ActiivtyJumper).
On utorok, 13. júna 2017 16:49:26 CEST Sebastian Kügler wrote: > > The signal isn't defined in "Item", you need to create a DBusObject object > in your QML code, then you can add a signal handler. I can not really find a reference to DBusObject, what should it represent? > > ---------- main.qml > > > > Item { > > > > id: main > > > > ActivityJumper { > > > > id: activityJumper > > Here, it'll be found: > > onSignalDesktopChanged: print("desktop changed!") > I tried this before, but I was appearently missing a proper import (import org.kde.private.activityjumper 1.0) in the main.qml. Then I tried to use the Connections as a workaround. With the import the handler works from the object instance in main.qml like charm. Thanks!