DockWidget.h

#ifndef DOCKWIDGET_H
#define DOCKWIDGET_H

#include <QMainWindow>
#include <QDockWidget>
#include <QCheckBox>

class DockWidget : public QMainWindow
{
    Q_OBJECT

public:
    DockWidget();

private:

    QDockWidget *dckWidget;
    QCheckBox *showdckWidgetChkBox;

};

#endif

// end .h file


//  Begin DockWidget.cpp File.

#include "DockWidget.h"
#include <QtGui>

DockWidget::DockWidget()
{
    dckWidget = new QDockWidget(this);
    dckWidget->setFixedSize(250, 100);

    showdckWidgetChkBox = new QCheckBox(tr("Show or hide the Dock Widget"), this);
    showdckWidgetChkBox->setChecked(true);

    if (showdckWidgetChkBox->isChecked()) {
        showdckWidgetChkBox->show();
    } else {
        showdckWidgetChkBox->hide();
    }

    setGeometry(250, 250, 1024, 700);
}


// End DockWidget.cpp File

//start main.cpp file

#include "DockWidget.h"
#include <QtGui>

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

    DockWidget *dockWidget = new DockWidget;
                dockWidget->show();

    return Dock.exec();
}

// End DockWidget.cpp File