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diff --git a/examples/xmlpatterns/recipes/querymainwindow.cpp b/examples/xmlpatterns/recipes/querymainwindow.cpp
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+++ b/examples/xmlpatterns/recipes/querymainwindow.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+#include <QtXmlPatterns>
+
+#include "querymainwindow.h"
+#include "xmlsyntaxhighlighter.h"
+
+//! [0]
+QueryMainWindow::QueryMainWindow() : ui_defaultQueries(0)
+{
+    setupUi(this);
+
+    new XmlSyntaxHighlighter(findChild<QTextEdit*>("inputTextEdit")->document());
+    new XmlSyntaxHighlighter(findChild<QTextEdit*>("outputTextEdit")->document());
+
+    ui_defaultQueries = findChild<QComboBox*>("defaultQueries");
+    QMetaObject::connectSlotsByName(this);
+    connect(ui_defaultQueries, SIGNAL(currentIndexChanged(int)), SLOT(displayQuery(int)));
+
+    loadInputFile();
+    const QStringList queries(QDir(":/files/", "*.xq").entryList());
+    int len = queries.count();
+    for(int i = 0; i < len; ++i)
+        ui_defaultQueries->addItem(queries.at(i));
+}
+//! [0]
+
+
+//! [1]
+void QueryMainWindow::displayQuery(int index)
+{
+    QFile queryFile(QString(":files/") + ui_defaultQueries->itemText(index));
+    queryFile.open(QIODevice::ReadOnly);
+    const QString query(QString::fromLatin1(queryFile.readAll()));
+    findChild<QTextEdit*>("queryTextEdit")->setPlainText(query);
+
+    evaluate(query);
+}
+//! [1]
+
+
+void QueryMainWindow::loadInputFile()
+{
+    QFile forView;
+    forView.setFileName(":/files/cookbook.xml");
+    if (!forView.open(QIODevice::ReadOnly)) {
+        QMessageBox::information(this,
+            tr("Unable to open file"), forView.errorString());
+        return;
+    }
+
+    QTextStream in(&forView);
+    QString inputDocument = in.readAll();
+    findChild<QTextEdit*>("inputTextEdit")->setPlainText(inputDocument);
+}
+
+
+//! [2]
+void QueryMainWindow::evaluate(const QString &str)
+{
+    QFile sourceDocument;
+    sourceDocument.setFileName(":/files/cookbook.xml");
+    sourceDocument.open(QIODevice::ReadOnly);
+
+    QByteArray outArray;
+    QBuffer buffer(&outArray);
+    buffer.open(QIODevice::ReadWrite);
+
+    QXmlQuery query;
+    query.bindVariable("inputDocument", &sourceDocument);
+    query.setQuery(str);
+    if (!query.isValid())
+        return;
+
+    QXmlFormatter formatter(query, &buffer);
+    if (!query.evaluateTo(&formatter))
+        return;
+
+    buffer.close();
+    findChild<QTextEdit*>("outputTextEdit")->setPlainText(QString::fromUtf8(outArray.constData()));
+
+}
+//! [2]
+