/****************************************************************************** $Id: qt/main.h   3.3.4   edited May 27 2003 $**** Copyright (C) 1992-2002 Trolltech AS.  All rights reserved.**** This file is part of an example program for Qt.  This example** program may be used, distributed and modified without limitation.*******************************************************************************/#include <qapplication.h>#include <qsqldatabase.h>#include <qsqlcursor.h>#include "../connection.h"class QSqlRecord;class InvoiceItemCursor : public QSqlCursor{    public:	InvoiceItemCursor();    protected:	QVariant calculateField( const QString & name );};