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Need help for problem of black box with my QWidget

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  • J Offline
    J Offline
    JeanRemy
    wrote on last edited by
    #1

    I have a problem with QSbinBox or QFrame. it seems that after hours of running, Some QWidget lose there contour or becomes totally black and flashes. So I have no idea to diagnose or analyse the problem.
    I don't know how to put a screen in this forum. If someone explain me i can send you a picture of the problem.

    Thanks for help

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    0
    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi and welcome to devnet,

      In between you could use an image sharing site for that.

      Anyway, some more information about your setup would be good. Like

      • Qt version

      • OS version

      • Compiler

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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      • J Offline
        J Offline
        JeanRemy
        wrote on last edited by
        #3

        @SGaist
        For images of my bug : https://3dsystems.teamplatform.com/pages/94919?t=da2ssnhu4f0v

        I use : Qt5.0.2 and compiler mingw47_32
        I work on windows XP

        The problem concern only QFrame, QSpinBox, QComboBox but doesn't affect QPushButton, QProgressBar, QToolBar and others of my Widget. Globaly all of my widget that i refresh cyclically.

        It seems to be a problem of refresh or something like that but don't know exactly what ! Is there a memory or a stack that manage that can be full? Or a signal/slot that need to be disconned?

        Thanks for for help SGaist

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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #4

          AFAIK, no.

          You could try to check your application with KDAB's GammaRay

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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          • J Offline
            J Offline
            JeanRemy
            wrote on last edited by
            #5

            Thanks i will try.
            FYI It works perfectly on windows 7. But I need it on XP.

            Thanks for your help

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            • M Offline
              M Offline
              mcosta
              wrote on last edited by
              #6

              IIRC Xp is not anymore supported by Qt.

              Once your problem is solved don't forget to:

              • Mark the thread as SOLVED using the Topic Tool menu
              • Vote up the answer(s) that helped you to solve the issue

              You can embed images using (http://imgur.com/) or (http://postimage.org/)

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              • J Offline
                J Offline
                JeanRemy
                wrote on last edited by
                #7

                @mcosta said:

                IIRC

                What is exactly IIRC?

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                • M Offline
                  M Offline
                  mcosta
                  wrote on last edited by
                  #8

                  If I Remember Correctly

                  Once your problem is solved don't forget to:

                  • Mark the thread as SOLVED using the Topic Tool menu
                  • Vote up the answer(s) that helped you to solve the issue

                  You can embed images using (http://imgur.com/) or (http://postimage.org/)

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                  • SGaistS Offline
                    SGaistS Offline
                    SGaist
                    Lifetime Qt Champion
                    wrote on last edited by
                    #9

                    IIRC = "If I recall correctly"

                    AFAIK XP is still supported, however the pre-built Qt Creator might not run on it

                    Interested in AI ? www.idiap.ch
                    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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