#include <QtGui>
#include <QApplication>
#include <QtWidgets>

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

    QHBoxLayout * layout = new QHBoxLayout();

    QPushButton * button = new QPushButton("Press me");
    layout->addWidget(button);

    QLabel * label = new QLabel("Label");
    layout->addWidget(label);

    QWidget window;
    window.setLayout(layout);
    window.setWindowTitle("My Qt Application!");
    window.show();

    return app.exec();
}