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  4. PenTouch/TouchPen/Digitizer not working on QT 5.1.1

PenTouch/TouchPen/Digitizer not working on QT 5.1.1

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  • N Offline
    N Offline
    Narasimman
    wrote on last edited by
    #1

    We are using QT in our application,We are not used any specific API's for touch,digitizer, EArlier we were using QT 4.7.4 , it was working but recently migrated to QT 5.1.1 but it is not working . could you point me any bug id or known issue regarding this? or give workaround for this. Even touch events are not working but fixed using webview->setAttribute(Qt::WA_AcceptTouchEvents, false); but still digitizer/pen device is not working.

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

      Hi,

      What parameters were you using in Qt 4 when running your application ?

      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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      • N Offline
        N Offline
        Narasimman
        wrote on last edited by
        #3

        @Narasimman said:

        webview->setAttribute(Qt::WA_AcceptTouchEvents, false)

        I couldn't get your question. Actually webview->setAttribute(Qt::WA_AcceptTouchEvents, false) itself not used when running my application on QT 4.7.4. This statement is used only on QT 5.1.1

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

          Sorry, I'm so used that Qt 4 to Qt 5 questions relates to embedded systems that I didn't realize that it might not be your case.

          What is your current setup ? OS/Input device etc.

          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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          • N Offline
            N Offline
            Narasimman
            wrote on last edited by
            #5

            Simple window Application using QT 5.1.1 on Dell Venue Pro 8 Tablet with pen touch.
            It is not working now. earlier I used qt 4.7.4 it worked.

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            • SGaistS Offline
              SGaistS Offline
              SGaist
              Lifetime Qt Champion
              wrote on last edited by
              #6

              Qt 5.1 being pretty old by now, would it be possible to try with 5.5 ?

              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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              • SGaistS SGaist

                Qt 5.1 being pretty old by now, would it be possible to try with 5.5 ?

                N Offline
                N Offline
                Narasimman
                wrote on last edited by
                #7

                @SGaist Shall I know which component and class is responsible for pen touch event. because it seems to working with QT 4.7.4.

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                • N Offline
                  N Offline
                  Narasimman
                  wrote on last edited by
                  #8

                  @SGaist any update on this

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

                    Parts of it is QInputMethodEvent and related classes

                    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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