diff --git a/Modules/IGTUI/Qmitk/QmitkAbstractTrackingDeviceWidget.h b/Modules/IGTUI/Qmitk/QmitkAbstractTrackingDeviceWidget.h
index 8d5cd3b902..7661fb5010 100644
--- a/Modules/IGTUI/Qmitk/QmitkAbstractTrackingDeviceWidget.h
+++ b/Modules/IGTUI/Qmitk/QmitkAbstractTrackingDeviceWidget.h
@@ -1,175 +1,175 @@
 /*===================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center,
 Division of Medical and Biological Informatics.
 All rights reserved.
 
 This software is distributed WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR
 A PARTICULAR PURPOSE.
 
 See LICENSE.txt or http://www.mitk.org for details.
 
 ===================================================================*/
 
 #ifndef QmitkAbstractTrackingDeviceWidget_H
 #define QmitkAbstractTrackingDeviceWidget_H
 
 #include <QWidget>
 #include "MitkIGTUIExports.h"
 #include "mitkTrackingDevice.h"
 
 #include <mitkIPersistenceService.h>
 
 #include "QmitkTrackingDeviceConfigurationWidgetConnectionWorker.h"
 
 //itk headers
 
 /** Documentation:
  *  \brief Abstract class to configure a tracking device.
  *         Inherited widgets should be registered in the Microservice (TrackingDeviceCollectionWidget),
  *         If done so, they will be included in the QmitkTrackingDeviceConfigurationWidget of the Tracking Toolbox.
  *
  *         - Each implementation of this class must have a method to get a TrackingDevice
  *         - Each implementation handles itself, if a new TrackingDevice needs to be constructed.
  *                Attention: In former MITK versions, there was no pure virtual GetTrackingDevice function but a pure virtual ConstructTrackingDevice function.
  *                You can simply rename these, but you should give it a thought, if each time "Construct" was called, a new device needs to be constructed,
  *                or if you can store your TrackingDevice in a member variable and return this. Up to you.
  *         - Please create the UI elements in a function like CreateQtPartControl (e.g. see QmitkVitrualTrackerWidget).
  *         - You might want to use own buttons etc., please connect them in a private CreateConnections (e.g. see QmitkVitrualTrackerWidget).
  *         - Due to initialization of qt during autoloading of the IGT module, you constructor should be as slim as possible and only contain a call
  *           of the QmitkAbstractTrackingDeviceWidget constructor and simple variable initialization.
  *         - For the initialization, you must write an Iniltialize() function, which must include a call of InitializeSuperclassWidget() and should contain
  *           calls of your private CreateConnections / CreateQtPartControl (if you implemented these).
  *         - For integration into the TrackingToolbox, a clone function is needed. Here, a new widget should be created, Initialize() needs to be called,
  *           and all settings of your widget should be copied.
  *
  *         You can Load and Store previous settings of your GUI elements (e.g. see QmitkNDIPolarisWidget).
  *         Also, you can add an output textbox to your widget to display information about your device status. It's optional, see e.g. QmitkNDIAuroraWidget.
  *         Some Devices need the information if drivers are installed on your computer. If this is necessary for your device to avoid crashes,
  *         please override IsDeviceInstalled. The default return value is true otherwise.
  *
  *  \ingroup IGTUI
  */
 class MITKIGTUI_EXPORT QmitkAbstractTrackingDeviceWidget : public QWidget
 {
   Q_OBJECT
 
 public:
   static const std::string VIEW_ID;
 
   QmitkAbstractTrackingDeviceWidget(QWidget* parent = 0, Qt::WindowFlags f = 0);
 
   virtual ~QmitkAbstractTrackingDeviceWidget();
 
   /**
    * \brief Return pointer to copy of the object.
    * Internally use of QmitkUSAbstractCustomWidget::Clone() with additionaly
    * setting an internal flag that the object was really cloned.
    */
   QmitkAbstractTrackingDeviceWidget* CloneForQt(QWidget* parent = 0) const;
 
   /**
   * \brief Subclass must implement this method to return a pointer to a copy of the object.
   * Please don't forget to call InitializeSuperclassWidget(), CreateQtPartControl and optionally CreateConnections during this function.
   */
   virtual void Initialize() = 0;
 
   bool IsInitialized() const { return isInitialized; }
 
 signals:
   void ConnectionTested(bool connected, QString output);
 
   protected slots:
   void TestConnectionFinished(bool connected, QString output);
 
   /* @brief This method is called when the user presses the button "test connection". The method will then create a temporary tracking device,
    *        try to open a connection and start tracking. The user can see the result of the connection test on the small output window.
    */
   void TestConnection();
 
 private:
   /// \brief Creation of the connections. You might implement the same function again in your inherited widget.
   void CreateConnections();
 
 protected:
   PERSISTENCE_GET_SERVICE_METHOD_MACRO
     void InitializeSuperclassWidget();
 
   QmitkTrackingDeviceConfigurationWidgetConnectionWorker* m_TestConnectionWorker;
   QThread* m_TestConnectionWorkerThread;
 
   /**
    * \brief Subclass must implement this method to return a pointer to a copy of the object.
    * Please don't forget to call Initialize() during this function and copy all of your settings.
    */
   virtual QmitkAbstractTrackingDeviceWidget* Clone(QWidget* parent = 0) const = 0;
 
 public:
   /**
   * \brief Optional method to add output to a small screen in the trackingToolbox (see QmitkNDIPolarisWidget)
   */
   virtual void ResetOutput() {}
   /**
   * \brief Optional method to add output to a small screen in the trackingToolbox (see QmitkNDIPolarisWidget)
   */
   virtual void AddOutput(std::string) {}
   virtual mitk::TrackingDevice::Pointer GetTrackingDevice() = 0;
 
   /**
   * \brief Optional method to store and load settings of your widget (see QmitkNDIPolarisWidget)
   */
   virtual void StoreUISettings() {}
 
   /**
   * \brief Optional method to store and load settings of your widget (see QmitkNDIPolarisWidget)
   */
   virtual void LoadUISettings() {}
 
   /**
   * \brief Optional method to investigate if drivers etc for your device are installed.
   * The default value is "true" as most devices don't need this information.
   * Others however migth crash, and for these you might implement this function (see QmitkMicronTrackerWidget)
   */
   virtual bool IsDeviceInstalled() { return true; }
 
   /**
   * \brief This function is called, when in the TrackingToolboxView "Connect" was clicked and the device is successful connected.
   * Can e.g. be used to activate options of a tracking device only when it is connected.
   */
-  virtual void OnConnected(bool _success) {};
+  virtual void OnConnected(bool) {}
   /**
   * \brief This function is called, when in the TrackingToolboxView "Disconnect" was clicked and the device is successful disconnected.
   * Can e.g. be used to activate/disactivate options of a tracking device.
   */
-  virtual void OnDisconnected(bool _success) {};
+  virtual void OnDisconnected(bool) {}
 
   /**
   * \brief This function is called, when in the TrackingToolboxView "Start Tracking" was clicked and the device successfully started tracking.
   * Can e.g. be used to activate options of a tracking device only when tracking is started.
   */
-  virtual void OnStartTracking(bool _success){};
+  virtual void OnStartTracking(bool) {}
   /**
   * \brief This function is called, when in the TrackingToolboxView "Stop Tracking" was clicked and the device successful stopped tracking.
   * Can e.g. be used to activate/disactivate options when device is not tracking.
   */
-  virtual void OnStopTracking(bool _success) {};
+  virtual void OnStopTracking(bool) {}
   /**
   * \brief This function is called, when anything in the ToolStorage changed, e.g. AddTool or EditTool.
   * ServiceListener is connected in the QmitkMITKIGTTrackingToolboxView.
   */
-  virtual void OnToolStorageChanged() {};
+  virtual void OnToolStorageChanged() {}
 
 
   std::string m_ErrorMessage; ///< current problem description
 
 private:
   /**
   * \warning Don't touch this variable if you don't know what you are doing!
   */
   bool isInitialized;
 };
 
 #endif