argv parameter not received on mac

[chilarai]

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]

@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

[chilarai]

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

[VRonin]

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

[chilarai]

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

[SGaist]

Hi,

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