+ * If @p preferredService is a valid dbus service, it will be tried first.
+ * @p preferredService needs to support the org.kde.dolphin.MainWindow dbus interface with the /dolphin/Dolphin_1 path.
+ * Returns true if the URLs were successfully attached.
+ */
+ bool attachToExistingInstance(const QList<QUrl>& inputUrls, bool openFiles, bool splitView, const QString& preferredService = QString());
+
+ /**
+ * Returns a QVector with all GUI-capable Dolphin instances