onUnbind
fun onUnbind( connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (<Error class: unknown class>) -> Unit): <Error class: unknown class>(source)
Emitted when an object has been unbound from its item, for example when a listitem was removed from use in a list widget and its property@Gtk.ListItem:item is about to be unset.
This signal is the opposite of the signal@Gtk.SignalListItemFactory::bind signal and should be used to undo everything done in that signal.
Parameters
connectFlags
a combination of ConnectFlags
handler
the Callback to connect. Params: object The GObject to unbind