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Calculation stops when using QMessageBox -> critical()

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  • M Offline
    M Offline
    Matty92
    wrote on last edited by
    #1

    Hello,

    in my programm I use a QMessageBox to display an Error (when closing the application while (Real-Time- ) calculation runs).
    Now I have the problem, that the calculation stops until the QMessageBox is closed.

    This is my code:
    @if (this->communicate) {
    QMessageBox messageBox;
    messageBox.critical(0, "Warning", "Still communicating!");
    messageBox.setFixedSize(500, 200);
    event->ignore();
    }@

    Is there a way to let my Programm continue its calculation while the QMessageBox is open?

    Greetings,
    Matt

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

      Hi and welcome to devnet,

      You have to setup the message box completely yourself and call either show or open for that.

      critical() is a static function calling exec thus the blocking behavior (and you are using it wrong)

      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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