* @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());
+ bool attachToExistingInstance(const QList<QUrl>& inputUrls, bool openFiles, bool splitView, const QString& preferredService, const QString &activationToken);
/**
* Returns a QVector with all GUI-capable Dolphin instances