#include <QApplication>
#include <QTranslator>
#include <QLocale>
#include <QLibraryInfo>
#include <QtWidgets>

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

    QString locale = QLocale::system().name().section('_', 0, 0);
    QTranslator translator;
    translator.load(QString("qt_") + locale, QLibraryInfo::location(QLibraryInfo::TranslationsPath));
    app.installTranslator(&translator);

    // This QPushButton of QuestionBox aren't in french
    QMessageBox::question(0, "Hello", "Hello");

    return app.exec();
}