connectUnselectAll
fun connectUnselectAll(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Unit): <Error class: unknown class>
A class@Gtk.SignalAction which gets emitted when the user unselects all items.
Applications should not connect to it, but may emit it with g_signal_emit_by_name() if they need to control selection programmatically.
The default binding for this signal is Ctrl-Shift-a.
Parameters
connectFlags
A combination of ConnectFlags
handler
the Callback to connect