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.