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    Solved argv parameter not received on mac

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    • C
      chilarai last edited by

      Hello everyone.

      I am trying to get the filename using my custom application by double clicking on the file.
      I am using the following code on Windows and Linux and the application logs the filename as a parameter on my log file. But on Mac it doesn't work. Can you point me where I am wrong or what else do I have to do on Macs?

      Also, using normal C++ console code on Mac, I receive an extra -PSN_xxx which doesn't appear on QT

      int main(int argc, char *argv[])
      {
          QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
      
          QGuiApplication app(argc, argv);
      
      
          QFile file("/example.txt");
          if(!file.open(QFile::WriteOnly |
                        QFile::Text))
          {
              qDebug() << " Could not open file for writing";
              return 0;
          }
      
          QTextStream out(&file);
          out<<"argc"<<argc<< endl;
      
          for (int i =0; i<argc; i++){
                 out<<argv[i] << endl;
          }
          file.flush();
          file.close();
      
      // rest of the code
      

      Help appreciated

      J.Hilk 1 Reply Last reply Reply Quote 0
      • J.Hilk
        J.Hilk Moderators @chilarai last edited by

        @chilarai said in argv parameter not received on mac:

        QFile file("/example.txt");

        the problem is not the arg[] but your file name /path,

        define a proper cross platform path for your log file and you're good to go

        Be aware of the Qt Code of Conduct, when posting : https://forum.qt.io/topic/113070/qt-code-of-conduct

        Qt Needs YOUR vote: https://bugreports.qt.io/browse/QTQAINFRA-4121


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        A: It's blue light.
        Q: What does it do?
        A: It turns blue.

        1 Reply Last reply Reply Quote 2
        • C
          chilarai last edited by

          Hey thanks for the reply. The path is just an example. It does write the argv[0] parameter. But not the other parameters

          1 Reply Last reply Reply Quote 0
          • VRonin
            VRonin last edited by

            Mac's finder does not append the name of the file as an argument to the application as Windows and most linux desktop environments. You have to handle an event: https://doc.qt.io/qt-5/qfileopenevent.html

            "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
            ~Napoleon Bonaparte

            On a crusade to banish setIndexWidget() from the holy land of Qt

            1 Reply Last reply Reply Quote 7
            • C
              chilarai last edited by

              Awesome. Thats what i was looking for. Thank you so much

              1 Reply Last reply Reply Quote 1
              • SGaist
                SGaist Lifetime Qt Champion last edited by

                Hi,

                Just in case, you can get the list of parameters from your application instance using the arguments method.

                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 Reply Quote 3
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