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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple style='word-wrap: break-word;-webkit-nbsp-mode: space;-webkit-line-break: after-white-space'><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I did what you told. But still I cannot select seed point unless I call Start().<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>This is the code in main():<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> </span><span style='font-size:10.0pt;font-family:DotumChe'>vtkSmartPointer<vtkPointHandleRepresentation2D> handle = <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> </span><span style='font-size:10.0pt;font-family:DotumChe'> </span><span style='font-size:10.0pt;font-family:DotumChe'> vtkSmartPointer<vtkPointHandleRepresentation2D>::New();<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> handle->GetProperty()->SetColor(1,0,0);<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> vtkSmartPointer<vtkSeedRepresentation> rep = <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> vtkSmartPointer<vtkSeedRepresentation>::New();<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> rep->SetHandleRepresentation(handle);<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> <span style='color:green'>// Seed widget<o:p></o:p></span></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> vtkSmartPointer<vtkSeedWidget> seedWidget = <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> vtkSmartPointer<vtkSeedWidget>::New();<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> seedWidget->SetInteractor(<span style='color:blue'>this</span>->ui->qvtkWidget_4->GetRenderWindow()->GetInteractor());<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> seedWidget->SetRepresentation(rep);<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> vtkSmartPointer<vtkSeedCallback> seedCallback = <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> vtkSmartPointer<vtkSeedCallback>::New();<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> seedCallback->SetRepresentation(rep);<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> seedWidget->AddObserver(vtkCommand::PlacePointEvent,seedCallback);<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> seedWidget->AddObserver(vtkCommand::InteractionEvent,seedCallback);<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> seedWidget->On();<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:DotumChe'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:DotumChe'> <span style='color:blue'>this</span>->ui->qvtkWidget_4->GetRenderWindow()->GetInteractor()->Start();</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>And this is the code for interaction:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe;color:blue'>class</span><span style='font-size:10.0pt;font-family:DotumChe'> vtkSeedCallback : <span style='color:blue'>public</span> vtkCommand<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>{<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> <span style='color:blue'>public</span>:<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> <span style='color:blue'>static</span> vtkSeedCallback *New()<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> { <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> <span style='color:blue'>return</span> <span style='color:blue'>new</span> vtkSeedCallback; <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> }<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> vtkSeedCallback() {}<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> <span style='color:blue'>virtual</span> <span style='color:blue'>void</span> Execute(vtkObject*, <span style='color:blue'>unsigned</span> <span style='color:blue'>long</span> <span style='color:blue'>event</span>, <span style='color:blue'>void</span> *calldata)<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> {<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> Seed_Selection_Portal = <span style='color:blue'>true</span>;<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> Seed_Selection_Tumor = <span style='color:blue'>true</span>;<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> <span style='color:blue'>if</span>(<span style='color:blue'>event</span> == vtkCommand::PlacePointEvent)<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> {<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> std::cout << <span style='color:#A31515'>"Point placed, total of: "</span> <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> << <span style='color:blue'>this</span>->SeedRepresentation->GetNumberOfSeeds() << std::endl;<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> }<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> <span style='color:blue'>if</span>(<span style='color:blue'>event</span> == vtkCommand::InteractionEvent)<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> {<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> <span style='color:blue'>if</span>(calldata)<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> {<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> std::cout << <span style='color:#A31515'>"Interacting with seed : "</span> <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> << *(<span style='color:blue'>static_cast</span>< <span style='color:blue'>int</span> * >(calldata)) << std::endl;<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> }<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> }<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'> <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:DotumChe'> std::cout << <span style='color:#A31515'>"List of seeds (Display coordinates):"</span> << std::endl;</span><span style='font-size:10.0pt;font-family:DotumChe'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:DotumChe'> </span><span style='font-size:10.0pt'>…</span><span style='font-size:10.0pt;font-family:DotumChe'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:DotumChe'>}<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:DotumChe'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Thank you,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Xiaopeng<o:p></o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Clinton Stimpson [mailto:clinton@elemtech.com] <br><b>Sent:</b> Saturday, June 25, 2011 10:41 AM<br><b>To:</b> Xiaopeng Yang<br><b>Cc:</b> 'vtk'; insight-users@itk.org<br><b>Subject:</b> Re: [vtkusers] QT, VTK, and ITK combined program exit problem<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Jun 24, 2011, at 7:36 PM, Xiaopeng Yang wrote:<o:p></o:p></p></div><p class=MsoNormal><br><br><o:p></o:p></p><div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hi Clint,</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Actually I tried to use QVTKInteractor as follows:</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:DotumChe'>imageViewer1_open->SetupInteractor(<span style='color:blue'>this</span>->ui->qvtkWidget->GetRenderWindow()->GetInteractor());</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>…</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:DotumChe;color:blue'>this</span><span style='font-size:10.0pt;font-family:DotumChe'>->ui->qvtkWidget->GetRenderWindow()->GetInteractor()->Start();</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Don't call Start() for a Qt application. Use QApplication::exec() in your main() instead.<o:p></o:p></p></div><p class=MsoNormal><br><br><o:p></o:p></p><div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>However, still the same problem occurred. Could you please let me know what mistakes I made?</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I'm not sure why your seed point selection isn't working.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Clint<o:p></o:p></p></div><p class=MsoNormal><br><br><o:p></o:p></p><div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Thank you,</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Best regards,</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Xiaopeng</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in;border-width:initial;border-color:initial'><div><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span class=apple-converted-space><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span></span><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><a href="mailto:clinton@elemtech.com">clinton@elemtech.com</a><span class=apple-converted-space> </span>[mailto:clinton@elemtech.com]<span class=apple-converted-space> </span><br><b>Sent:</b><span class=apple-converted-space> </span>Saturday, June 25, 2011 10:04 AM<br><b>To:</b><span class=apple-converted-space> </span>Xiaopeng Yang; 'vtk';<span class=apple-converted-space> </span><a href="mailto:insight-users@itk.org">insight-users@itk.org</a><br><b>Subject:</b><span class=apple-converted-space> </span>Re: [vtkusers] QT, VTK, and ITK combined program exit problem</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div></div></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><p class=MsoNormal style='margin-bottom:12.0pt'>If you are using Qt, the event loop should be handled by Qt, not VTK with the iren->start.<br>Also be sure to use the QVTKInteractor instead of the type from the factory method vtkRenderWindowInteractor::New.<br><br>Clint<span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p><div id="htc_header"><p class=MsoNormal style='margin-bottom:12.0pt'>----- Reply message -----<br>From: "Xiaopeng Yang" <<a href="mailto:yxp233@postech.ac.kr">yxp233@postech.ac.kr</a>><br>Date: Fri, Jun 24, 2011 6:42 pm<br>Subject: [vtkusers] QT, VTK, and ITK combined program exit problem<br>To: "&apos;vtk&apos;" <<a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a>>, <<a href="mailto:insight-users@itk.org">insight-users@itk.org</a>><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hi All,</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I found where the problem is: “iren->Start()”. “iren” is the vtkRenderWindowInteractor I defined in my program. If I delete this sentence “iren->Start()”, then I can close both GUI and console windows without warning message “QObject::killTimers: timers cannot be stopped from another thread”. Otherwise, the problem I described in the previous Email will occur.</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>However, for seed point selection, I need “iren->Start()”. Then what should I do to solve the problem?</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Best,</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Xiaopeng</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in;border-width:initial;border-color:initial'><div><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span class=apple-converted-space><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span></span><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><a href="mailto:vtkusers-bounces@vtk.org">vtkusers-bounces@vtk.org</a><span class=apple-converted-space> </span>[mailto:vtkusers-bounces@vtk.org]<span class=apple-converted-space> </span><b>On Behalf Of<span class=apple-converted-space> </span></b>Xiaopeng Yang<br><b>Sent:</b><span class=apple-converted-space> </span>Friday, June 24, 2011 4:07 PM<br><b>To:</b><span class=apple-converted-space> </span>'vtk';<span class=apple-converted-space> </span><a href="mailto:insight-users@itk.org">insight-users@itk.org</a><br><b>Subject:</b><span class=apple-converted-space> </span>[vtkusers] QT, VTK, and ITK combined program exit problem</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div></div></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Dear Users,<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>I made a program based on QT, VTK, and ITK. When I run the program, there are GUI window and console window. When I click “exit” button in the GUI window, the GUI window exits but the console window doesn’t. When I click “exit” button in the console window, there is a message: QObject::killTimers: timers cannot be stopped from another thread. If someone already had a similar experience, please could you share your knowledge?<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Thank you very much.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Best regards,<o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif"'>_______________________________________________<br>Powered by<span class=apple-converted-space> </span><a href="http://www.kitware.com">www.kitware.com</a><br><br>Visit other Kitware open-source projects at<span class=apple-converted-space> </span><a href="http://www.kitware.com/opensource/opensource.html">http://www.kitware.com/opensource/opensource.html</a><br><br>Please keep messages on-topic and check the VTK FAQ at:<span class=apple-converted-space> </span><a href="http://www.vtk.org/Wiki/VTK_FAQ">http://www.vtk.org/Wiki/VTK_FAQ</a><br><br>Follow this link to subscribe/unsubscribe:<br><a href="http://www.vtk.org/mailman/listinfo/vtkusers">http://www.vtk.org/mailman/listinfo/vtkusers</a><o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p></div></body></html>