#include <QApplication>
#include <QWidget>
#include <QDebug>

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

    QWidget widget;

    widget.showMaximized();
    widget.show();

    qDebug() << widget.width() << ", " << widget.height();

    int rtnVal = app.exec();
    return rtnVal;
}