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Create frameless QMessageBox

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  • M Offline
    M Offline
    marlenet15
    wrote on last edited by
    #1

    I have an application which is constructed as a stackwidget. When the user presses a button, a QMessageBox will pop up. I would like to take off the title of the messagebox. However, when the button is pressed, the messagebox appears BUT the application closes. What do I need to change?

    void user_Data::onClickButton()
    {
        QMessageBox *mb;
        mb->setWindowFlags(Qt::FramelessWindowHint |Qt::WindowStaysOnTopHint);
        mb->question(this,tr("TITLE"),tr("Are you sure you want to do this?"));
    }
    
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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi,

      Two options:

      1. Allocate mb on the stack
      2. Initialize mb properly (don't forget to delete it when you're done using it.)

      Warning: question is a static method, so currently you're using it wrongly.

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

      M 1 Reply Last reply
      1
      • SGaistS SGaist

        Hi,

        Two options:

        1. Allocate mb on the stack
        2. Initialize mb properly (don't forget to delete it when you're done using it.)

        Warning: question is a static method, so currently you're using it wrongly.

        M Offline
        M Offline
        marlenet15
        wrote on last edited by
        #3

        @SGaist I am not sure I follow you. How would I initialize mb properly? Oops, yes it is a warning.

        1 Reply Last reply
        0
        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #4

          Well: you have to allocate it since you're declaring a pointer to it.

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

          M 1 Reply Last reply
          0
          • SGaistS SGaist

            Well: you have to allocate it since you're declaring a pointer to it.

            M Offline
            M Offline
            marlenet15
            wrote on last edited by
            #5

            @SGaist Ok so the Application doesn't close anymore but the QMessageBox keeps showing the title bar.

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

              Again: question is a static method, it won't make use of any of your settings.

              Take a look at the Property based API chapter of QMessageBox documentation.

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

              1 Reply Last reply
              1

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