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Qt 6.11 is out! See what's new in the release blog

QDialogBox GUI makes a Framebuffer copy

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  • C CptN3m0

    @jsulm can't check right now, how my application would work without this thread.
    But mayber because I check if some button in my GUI was clicked or not?

    if(ui->pB_B->isChecked() == true  || ui->pB_B_2->isChecked() == true){
     // some code
    }
    
    jsulmJ Online
    jsulmJ Online
    jsulm
    Lifetime Qt Champion
    wrote on last edited by
    #6

    @CptN3m0 As long as you don't do this in your thread it shouldn't be a problem.

    https://forum.qt.io/topic/113070/qt-code-of-conduct

    C 1 Reply Last reply
    0
    • jsulmJ jsulm

      @CptN3m0 As long as you don't do this in your thread it shouldn't be a problem.

      C Offline
      C Offline
      CptN3m0
      wrote on last edited by
      #7

      @jsulm well.. I'm doing this in my thread.. this is also the problem, because I'm checking the state of some GUI elements?

      jsulmJ 1 Reply Last reply
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      • C CptN3m0

        @jsulm well.. I'm doing this in my thread.. this is also the problem, because I'm checking the state of some GUI elements?

        jsulmJ Online
        jsulmJ Online
        jsulm
        Lifetime Qt Champion
        wrote on last edited by
        #8

        @CptN3m0 You should not access any UI related classes from other threads than GUI thread. This is not supported.

        https://forum.qt.io/topic/113070/qt-code-of-conduct

        C 1 Reply Last reply
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        • jsulmJ jsulm

          @CptN3m0 You should not access any UI related classes from other threads than GUI thread. This is not supported.

          C Offline
          C Offline
          CptN3m0
          wrote on last edited by
          #9

          @jsulm what should I do then, to get it working correct?

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          • SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #10

            Hi,

            Use signals and slots to communicate your UI values to the thread.

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

            C 1 Reply Last reply
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            • SGaistS SGaist

              Hi,

              Use signals and slots to communicate your UI values to the thread.

              C Offline
              C Offline
              CptN3m0
              wrote on last edited by
              #11

              @SGaist Hi, can you show me a little example?

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              • SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by
                #12

                Well, add two setters to your MyThread class, one for each boolean value that you want to check and connect them to your GUI.

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

                C 1 Reply Last reply
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                • SGaistS SGaist

                  Well, add two setters to your MyThread class, one for each boolean value that you want to check and connect them to your GUI.

                  C Offline
                  C Offline
                  CptN3m0
                  wrote on last edited by
                  #13
                  This post is deleted!
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                  • C Offline
                    C Offline
                    CptN3m0
                    wrote on last edited by
                    #14

                    I check it out without thread, doenst help. Still the same issue.

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                    • SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #15

                      Please show the complete code you are using for that part.

                      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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