/****************************************************************************
**
** 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.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** 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
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** 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
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** 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
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/

/*! 
    \example activeqt/qutlook
    \title Qutlook Example (ActiveQt)

    The Qutlook example demonstrates the use of ActiveQt to automate
    Outlook. The example makes use of the \l dumpcpp tool to generate
    a C++ namespace for the type library describing the Outlook
    Object Model.

    The project file for the example looks like this:

    \snippet examples/activeqt/qutlook/qutlook.pro 1
    \snippet examples/activeqt/qutlook/qutlook.pro 2

    The project file uses the \c dumpcpp tool to add an MS Outlook type library to the project.
    If this fails, then the generated makefile will just print an error message, otherwise
    the build step will now run the \e dumpcpp tool on the type library, and 
    generate a header and a cpp file (in this case, \c msoutl.h and \c msoutl.cpp) that 
    declares and implement an easy to use API to the Outlook objects.

    \snippet examples/activeqt/qutlook/addressview.h 0

    The AddressView class is a QWidget subclass for the user interface. The QTreeView widget
    will display the contents of Outlook's Contact folder as provided by the \c{model}.

    \snippet examples/activeqt/qutlook/addressview.cpp 0
    The AddressBookModel class is a QAbstractListModel subclass that communicates directly with 
    Outlook, using a QHash for caching.

    \snippet examples/activeqt/qutlook/addressview.cpp 1
    The constructor initializes Outlook. The various signals Outlook provides to notify about 
    contents changes are connected to the \c updateOutlook() slot.

    \snippet examples/activeqt/qutlook/addressview.cpp 2
    The destructor logs off from the session.

    \snippet examples/activeqt/qutlook/addressview.cpp 3
    The \c rowCount() implementation returns the number of entries as reported by Outlook. \c columnCount
    and \c headerData are implemented to show four columns in the tree view.

    \snippet examples/activeqt/qutlook/addressview.cpp 4
    The \c headerData() implementation returns hardcoded strings.

    \snippet examples/activeqt/qutlook/addressview.cpp 5
    The \c data() implementation is the core of the model. If the requested data is in the cache the
    cached value is used, otherwise the data is acquired from Outlook.

    \snippet examples/activeqt/qutlook/addressview.cpp 6
    The \c changeItem() slot is called when the user changes the current entry using the user interface.
    The Outlook item is accessed using the Outlook API, and is modified using the property setters.
    Finally, the item is saved to Outlook, and removed from the cache. Note that the model does not
    signal the view of the data change, as Outlook will emit a signal on its own.

    \snippet examples/activeqt/qutlook/addressview.cpp 7
    The \c addItem() slot calls the CreateItem method of Outlook to create a new contact item,
    sets the properties of the new item to the values entered by the user and saves the item.

    \snippet examples/activeqt/qutlook/addressview.cpp 8
    The \c update() slot clears the cache, and emits the reset() signal to notify the view about the
    data change requiring a redraw of the contents.

    \snippet examples/activeqt/qutlook/addressview.cpp 9
    \snippet examples/activeqt/qutlook/addressview.cpp 10
    The rest of the file implements the user interface using only Qt APIs, i.e. without communicating
    with Outlook directly.

    \snippet examples/activeqt/qutlook/main.cpp 0

    The \c main() entry point function finally instantiates the user interface and enters the
    event loop.

    To build the example you must first build the QAxContainer
    library. Then run your make tool in \c examples/activeqt/qutlook
    and run the resulting \c qutlook.exe.
*/
