Example of how to use logging in QT

qt_logging.cpp

#include "mainwindow.h"

#include <QApplication>
#include <QFile>
#include <QDebug>
#include <QLoggingCategory>

Q_LOGGING_CATEGORY(fcIo, "fc.io")


int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

//    QString file_loc = "/tmp/dbg.txt";
//    QFile *dbg_file = new QFile(file_loc);

//    dbg_file->open(QIODevice::WriteOnly);

//    QDebug dbg(dbg_file);

//    qDebug() << "HELLO WORLD" << endl;

    QLoggingCategory::setFilterRules("*.debug=false\n" "fc.io.debug=true");
//    QLoggingCategory::defaultCategory()->setEnabled(QtDebugMsg, true);

    qCDebug(fcIo, "Loading highscore ...");
    qDebug() << "Test";

    MainWindow mw;

    mw.show();

    return a.exec();
}