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Vertical slider again

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

    Call setRange in your MainWindow constructor.

    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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    • P Offline
      P Offline
      Payx
      wrote on last edited by
      #10

      Call SetRange ? i don't undertsand

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      • SGaistS Offline
        SGaistS Offline
        SGaist
        Lifetime Qt Champion
        wrote on last edited by
        #11

        That line: ui->verticalSlider->setRange(1,50); you should call it in the MainWindow constructor.

        And since you are using a Designer based interface you can also set the min and max values in Designer and avoid the setRange call.

        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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        • P Offline
          P Offline
          Payx
          wrote on last edited by Payx
          #12

          So the z=position;
          i keep it ?

          Sorry but even the "main constructor" it's the .cpp ? or .h ?

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          • SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #13

            Well... Yes if you use it somewhere else.

            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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            • P Offline
              P Offline
              Payx
              wrote on last edited by
              #14

              Yes i use the z somewhere else

              thats why i needed a range 1 - 50

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

                Where exactly ? Depending on that, there's not even a need for z. You can get the value directly from the slider.

                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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                • P Offline
                  P Offline
                  Payx
                  wrote on last edited by
                  #16

                  It depends where i use my "z" ?

                  How ?

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                  • P Offline
                    P Offline
                    Payx
                    wrote on last edited by
                    #17

                    thank's anyway,

                    3 h on it, i had time to ask help

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                    • P Payx

                      It depends where i use my "z" ?

                      How ?

                      A Offline
                      A Offline
                      ambershark
                      wrote on last edited by
                      #18

                      @Payx said in Vertical slider again:

                      It depends where i use my "z" ?

                      How ?

                      What do you use z for? Also side note, that's a horrible name for a variable locally much less one that is used at a class or global level.

                      What @SGaist is saying is you can always get the value of the slider from the slider itself without saving it to a variable. The function ui->verticalSlider->sliderPosition() will always contain the same value that your z would.

                      So with that in mind you can get rid of that whole overridden function and just call sliderPosition() when you need the value.

                      My L-GPL'd C++ Logger github.com/ambershark-mike/sharklog

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