diff --git a/Plugins/org.mitk.gui.qt.eventrecorder/src/internal/InteractionEventRecorder.cpp b/Plugins/org.mitk.gui.qt.eventrecorder/src/internal/InteractionEventRecorder.cpp
index 7f8b205269..1c2ffc770c 100644
--- a/Plugins/org.mitk.gui.qt.eventrecorder/src/internal/InteractionEventRecorder.cpp
+++ b/Plugins/org.mitk.gui.qt.eventrecorder/src/internal/InteractionEventRecorder.cpp
@@ -1,160 +1,160 @@
 /*===================================================================
 
 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.
 
 ===================================================================*/
 
 
 // Blueberry
 #include <berryISelectionService.h>
 #include <berryIWorkbenchWindow.h>
 
 // Qmitk
 #include "InteractionEventRecorder.h"
 
 // Qt
 #include <QMessageBox>
 #include <QFileDialog>
 // us
 #include "usGetModuleContext.h"
 #include "usModuleContext.h"
 #include "usModuleResource.h"
 
 #include <usModuleInitialization.h>
 #include <mitkXML2EventParser.h>
 #include <vtkSmartPointer.h>
 #include "QmitkRenderWindow.h"
 
 
 US_INITIALIZE_MODULE
 
 
 const std::string InteractionEventRecorder::VIEW_ID = "org.mitk.views.interactioneventrecorder";
 
 void InteractionEventRecorder::SetFocus()
 {
   m_Controls.textFileName->setFocus();
 }
 
 void InteractionEventRecorder::StartRecording()
 {
 
   MITK_INFO << "Start Recording";
   MITK_INFO << "Performing Reinit";
   mitk::RenderingManager::GetInstance()->InitializeViewsByBoundingObjects(this->GetDataStorage());
 
   m_CurrentObserver->SetOutputFile(m_Controls.textFileName->text().toStdString());
   m_CurrentObserver->StartRecording();
 }
 
 void InteractionEventRecorder::StopRecording()
 {
   MITK_INFO << "Stop Recording";
   m_CurrentObserver->StopRecording();
 }
 
 void InteractionEventRecorder::Play()
 {
   std::ifstream xmlStream(m_Controls.textFileName->text().toStdString().c_str());
   mitk::XML2EventParser parser(xmlStream);
   mitk::XML2EventParser::EventContainerType events = parser.GetInteractions();
 
   MITK_INFO << "parsed events";
-  for (int i=0; i < events.size(); ++i)
+  for (std::size_t i=0; i < events.size(); ++i)
   {
     //this->GetRenderWindowPart()->GetQmitkRenderWindow("axial")->GetRenderer()->GetDispatcher()->ProcessEvent(events.at(i));
     events.at(i)->GetSender()->GetDispatcher()->ProcessEvent(events.at(i));
   }
   MITK_INFO << "DONE";
 
 }
 
 void InteractionEventRecorder::OpenFile()
 {
   QString fn = QFileDialog::getOpenFileName(nullptr, "Open File...",
                                             QString(), "All Files (*)");
   if (!fn.isEmpty())
     this->m_Controls.textFileName->setText(fn);
 }
 
 void InteractionEventRecorder::RotatePlanes()
 {
   mitk::Point3D center;
   center.Fill(0);
   mitk::Vector3D firstVec;
   mitk::Vector3D secondVec;
 
   firstVec[0] = 1.0;
   firstVec[1] = .5;
   firstVec[2] = .25;
 
   secondVec[0] = 1;
   secondVec[1] = .25;
   secondVec[2] = 1;
 
   // Rotate Planes to a predefined state which can later be used again in tests
   this->GetRenderWindowPart()->GetQmitkRenderWindow("axial")->GetSliceNavigationController()->ReorientSlices( center, firstVec,secondVec );
   this->GetRenderWindowPart()->GetQmitkRenderWindow("axial")->GetRenderer()->RequestUpdate();
 
 }
 
 void InteractionEventRecorder::RotateView()
 {
   // Rotate the view in 3D to a predefined state which can later be used again in tests
   // this simulates a prior VTK Interaction
 
   vtkRenderWindow* renderWindow = mitk::BaseRenderer::GetRenderWindowByName("stdmulti.widget4");
 
   if (renderWindow == nullptr)
     return;
 
   mitk::Stepper* stepper = mitk::BaseRenderer::GetInstance(renderWindow)->GetCameraRotationController()->GetSlice();
 
   if (stepper == nullptr)
     return;
 
   unsigned int newPos = 17;
 
 
   stepper->SetPos(newPos);
 
   this->GetRenderWindowPart()->GetQmitkRenderWindow("axial")->GetRenderer()->RequestUpdate();
 }
 
 void InteractionEventRecorder::CreateQtPartControl( QWidget *parent )
 {
   // create GUI widgets from the Qt Designer's .ui file
   m_Controls.setupUi( parent );
   connect( m_Controls.btnStopRecording, SIGNAL(clicked()), this, SLOT(StopRecording()) );
   connect( m_Controls.btnStartRecording, SIGNAL(clicked()), this, SLOT(StartRecording()) );
   connect( m_Controls.btnPlay, SIGNAL(clicked()), this, SLOT(Play()) );
   connect( m_Controls.btnOpenFile, SIGNAL(clicked()), this, SLOT(OpenFile()) );
   connect( m_Controls.rotatePlanes, SIGNAL(clicked()), this, SLOT(RotatePlanes()) );
   connect( m_Controls.rotate3D, SIGNAL(clicked()), this, SLOT(RotateView()) );
 
   m_CurrentObserver = new mitk::EventRecorder();
   // Register as listener via micro services
   us::ServiceProperties props;
 
   props["name"] = std::string("EventRecorder");
   m_ServiceRegistration = us::GetModuleContext()->RegisterService<mitk::InteractionEventObserver>(m_CurrentObserver,props);
 
 
   /*
 
 delete m_CurrentObserverDEBUG;
   m_ServiceRegistrationDEBUG.Unregister();
   */
 }