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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>sql/overview/subclass3/main.h Example File</h1>
<pre>/****************************************************************************
** $Id: qt/main.h 3.3.8 edited Jan 11 14:37 $
**
** Copyright (C) 1992-2007 Trolltech ASA. 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 &lt;<a href="qapplication-h.html">qapplication.h</a>&gt;
#include &lt;<a href="qsqldatabase-h.html">qsqldatabase.h</a>&gt;
#include &lt;<a href="qsqlcursor-h.html">qsqlcursor.h</a>&gt;
#include "../connection.h"
class QSqlRecord;
class InvoiceItemCursor : public <a href="qsqlcursor.html">QSqlCursor</a>
{
public:
InvoiceItemCursor();
protected:
<a href="qvariant.html">QVariant</a> calculateField( const <a href="qstring.html">QString</a> &amp; name );
};
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