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diff --git a/examples/threads/queuedcustomtype/window.cpp b/examples/threads/queuedcustomtype/window.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 "window.h"
+
+//! [Window constructor start]
+Window::Window()
+{
+    thread = new RenderThread();
+//! [Window constructor start] //! [set up widgets and connections]
+
+    label = new QLabel();
+    label->setAlignment(Qt::AlignCenter);
+
+    loadButton = new QPushButton(tr("&Load image..."));
+    resetButton = new QPushButton(tr("&Stop"));
+    resetButton->setEnabled(false);
+
+    connect(loadButton, SIGNAL(clicked()), this, SLOT(loadImage()));
+    connect(resetButton, SIGNAL(clicked()), thread, SLOT(stopProcess()));
+    connect(thread, SIGNAL(finished()), this, SLOT(resetUi()));
+//! [set up widgets and connections] //! [connecting signal with custom type]
+    connect(thread, SIGNAL(sendBlock(Block)), this, SLOT(addBlock(Block)));
+//! [connecting signal with custom type]
+
+    QHBoxLayout *buttonLayout = new QHBoxLayout();
+    buttonLayout->addStretch();
+    buttonLayout->addWidget(loadButton);
+    buttonLayout->addWidget(resetButton);
+    buttonLayout->addStretch();
+
+    QVBoxLayout *layout = new QVBoxLayout(this);
+    layout->addWidget(label);
+    layout->addLayout(buttonLayout);
+
+//! [Window constructor finish]
+    setWindowTitle(tr("Queued Custom Type"));
+}
+//! [Window constructor finish]
+
+void Window::loadImage()
+{
+    QStringList formats;
+    foreach (QByteArray format, QImageReader::supportedImageFormats())
+        if (format.toLower() == format)
+            formats.append("*." + format);
+
+    QString newPath = QFileDialog::getOpenFileName(this, tr("Open Image"),
+        path, tr("Image files (%1)").arg(formats.join(" ")));
+
+    if (newPath.isEmpty())
+        return;
+
+    QImage image(newPath);
+    if (!image.isNull()) {
+        loadImage(image);
+        path = newPath;
+    }
+}
+
+void Window::loadImage(const QImage &image)
+{
+    QDesktopWidget desktop;
+    QImage useImage;
+    QRect space = desktop.availableGeometry();
+    if (image.width() > 0.75*space.width() || image.height() > 0.75*space.height())
+        useImage = image.scaled(0.75*space.width(), 0.75*space.height(),
+                                Qt::KeepAspectRatio, Qt::SmoothTransformation);
+    else
+        useImage = image;
+
+    pixmap = QPixmap(useImage.width(), useImage.height());
+    pixmap.fill(qRgb(255, 255, 255));
+    label->setPixmap(pixmap);
+    loadButton->setEnabled(false);
+    resetButton->setEnabled(true);
+    thread->processImage(useImage);
+}
+
+//! [Adding blocks to the display]
+void Window::addBlock(const Block &block)
+{
+    QColor color = block.color();
+    color.setAlpha(64);
+
+    QPainter painter;
+    painter.begin(&pixmap);
+    painter.fillRect(block.rect(), color);
+    painter.end();
+    label->setPixmap(pixmap);
+}
+//! [Adding blocks to the display]
+
+void Window::resetUi()
+{
+    loadButton->setEnabled(true);
+    resetButton->setEnabled(false);
+}