a unique or well-known bus name or null if connection is not a message bus connection
path of remote object
D-Bus interface to invoke method on
the name of the method to invoke
a #GVariant tuple with parameters for the method or null if not passing parameters
the expected type of the reply, or null
flags from the #GDBusCallFlags enumeration
the timeout in milliseconds, -1 to use the default timeout or G_MAXINT for no timeout
a #GUnixFDList or null
return location for a #GUnixFDList or null
a #GCancellable or null
null if error is set. Otherwise a non-floating #GVariant tuple with return values. Free with glib.variant.VariantG.unref.
Like gio.dbus_connection.DBusConnection.callSync but also takes and returns #GUnixFDList objects. See gio.dbus_connection.DBusConnection.callWithUnixFdList and gio.dbus_connection.DBusConnection.callWithUnixFdListFinish for more details.
This method is only available on UNIX.