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# main.cpp Example File
tutorial/t5/main.cpp

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        **
        ** Copyright (C) 2005-2005 Trolltech AS. All rights reserved.
        **
        ** This file is part of the documentation of the Qt Toolkit.
        **
        ** This file may be distributed under the terms of the Q Public License
    ** as defined by Trolltech AS of Norway and appearing in the file
    ** LICENSE.QPL included in the packaging of this file.
    **
    ** This file may be distributed and/or modified under the terms of the
    ** GNU General Public License version 2 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL included in the
    ** packaging of this file.
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        /****************************************************************
        **
        ** Qt tutorial 5
        **
        ****************************************************************/

        #include <QApplication>
        #include <QFont>
        #include <QLCDNumber>
        #include <QPushButton>
        #include <QSlider>
        #include <QVBoxLayout>
        #include <QWidget>

        class MyWidget : public QWidget
        {
        public:
            MyWidget(QWidget *parent = 0);
        };

        MyWidget::MyWidget(QWidget *parent)
            : QWidget(parent)
        {
            QPushButton *quit = new QPushButton("Quit");
            quit->setFont(QFont("Times", 18, QFont::Bold));

            QLCDNumber *lcd = new QLCDNumber(2);

            QSlider *slider = new QSlider(Qt::Horizontal);
            slider->setRange(0, 99);
            slider->setValue(0);

            connect(quit, SIGNAL(clicked()), qApp, SLOT(quit()));
            connect(slider, SIGNAL(valueChanged(int)),
                    lcd, SLOT(display(int)));

            QVBoxLayout *layout = new QVBoxLayout;
            layout->addWidget(quit);
            layout->addWidget(lcd);
            layout->addWidget(slider);
            setLayout(layout);
        }

        int main(int argc, char *argv[])
        {
            QApplication app(argc, argv);
            MyWidget widget;
            widget.show();
            return app.exec();
        }