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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
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+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
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+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
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+**
+** GNU General Public License Usage
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+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
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+**
+** If you are unsure which license is appropriate for your use, please
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+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*!
+    \example uitools/multipleinheritance
+    \title Multiple Inheritance Example
+
+    The Multiple Inheritance Example shows how to use a form created with \QD
+    in an application by subclassing both QWidget and the user interface
+    class, which is \c{Ui::CalculatorForm}.
+
+    \image multipleinheritance-example.png
+
+    To subclass the \c calculatorform.ui file and ensure that \c qmake
+    processes it with the \c uic, we have to include \c calculatorform.ui
+    in the \c .pro file, as shown below:
+
+    \snippet examples/uitools/multipleinheritance/multipleinheritance.pro 0
+
+    When the project is compiled, the \c uic will generate a corresponding
+    \c ui_calculatorform.h.
+
+    \section1 CalculatorForm Definition
+
+    In the \c CalculatorForm definition, we include the \c ui_calculatorform.h
+    that was generated earlier.
+
+    \snippet examples/uitools/multipleinheritance/calculatorform.h 0
+
+    As mentioned earlier, the class is a subclass of both QWidget and
+    \c{Ui::CalculatorForm}.
+
+    \snippet examples/uitools/multipleinheritance/calculatorform.h 1
+
+    Two slots are defined according to the \l{Automatic Connections}
+    {automatic connection} naming convention required by \c uic. This is
+    to ensure that \l{QMetaObject}'s auto-connection facilities connect
+    all the signals and slots involved automatically.
+
+    \section1 CalculatorForm Implementation
+
+    In the constructor, we call \c setupUi() to load the user interface file.
+    Note that we do not need the \c{ui} prefix as \c CalculatorForm is a
+    subclass of the user interface class.
+
+    \snippet examples/uitools/multipleinheritance/calculatorform.cpp 0
+
+    We include two slots, \c{on_inputSpinBox1_valueChanged()} and
+    \c{on_inputSpinBox2_valueChanged()}. These slots respond to the
+    \l{QSpinBox::valueChanged()}{valueChanged()} signal that both spin boxes
+    emit. Whenever there is a change in one spin box's value, we take that
+    value and add it to whatever value the other spin box has.
+
+    \snippet examples/uitools/multipleinheritance/calculatorform.cpp 1
+    \codeline
+    \snippet examples/uitools/multipleinheritance/calculatorform.cpp 2
+
+    \section1 \c main() Function
+
+    The \c main() function instantiates QApplication and \c CalculatorForm.
+    The \c calculator object is displayed by invoking the \l{QWidget::show()}
+    {show()} function.
+
+    \snippet examples/uitools/multipleinheritance/main.cpp 0
+
+    There are various approaches to include forms into applications. The
+    Multiple Inheritance approach is just one of them. See
+    \l{Using a Designer .ui File in Your Application} for more information on
+    the other approaches available.
+*/