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<h1 class="title">main.cpp Example File</h1>
<span class="subtitle">referenceexamples/attached/main.cpp</span>
<!-- $$$referenceexamples/attached/main.cpp-description -->
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<pre class="cpp">

  <span class="comment">/****************************************************************************
  **
  ** Copyright (C) 2017 The Qt Company Ltd.
  ** Contact: https://www.qt.io/licensing/
  **
  ** This file is part of the examples of the Qt Toolkit.
  **
  ** $QT_BEGIN_LICENSE:BSD$
  ** Commercial License Usage
  ** Licensees holding valid commercial Qt licenses may use this file in
  ** accordance with the commercial license agreement provided with the
  ** Software or, alternatively, in accordance with the terms contained in
  ** a written agreement between you and The Qt Company. For licensing terms
  ** and conditions see https://www.qt.io/terms-conditions. For further
  ** information use the contact form at https://www.qt.io/contact-us.
  **
  ** BSD License Usage
  ** Alternatively, you may use this file under the terms of the BSD license
  ** as follows:
  **
  ** &quot;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
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  <span class="preprocessor">#include &lt;QCoreApplication&gt;</span>
  <span class="preprocessor">#include &lt;QQmlEngine&gt;</span>
  <span class="preprocessor">#include &lt;QQmlComponent&gt;</span>
  <span class="preprocessor">#include &lt;QDebug&gt;</span>
  <span class="preprocessor">#include &quot;birthdayparty.h&quot;</span>
  <span class="preprocessor">#include &quot;person.h&quot;</span>

  <span class="type">int</span> main(<span class="type">int</span> argc<span class="operator">,</span> <span class="type">char</span> <span class="operator">*</span><span class="operator">*</span> argv)
  {
      <span class="type">QCoreApplication</span> app(argc<span class="operator">,</span> argv);

      qmlRegisterType<span class="operator">&lt;</span>BirthdayPartyAttached<span class="operator">&gt;</span>();
      qmlRegisterType<span class="operator">&lt;</span>BirthdayParty<span class="operator">&gt;</span>(<span class="string">&quot;People&quot;</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="string">&quot;BirthdayParty&quot;</span>);
      qmlRegisterType<span class="operator">&lt;</span>ShoeDescription<span class="operator">&gt;</span>();
      qmlRegisterType<span class="operator">&lt;</span>Person<span class="operator">&gt;</span>();
      qmlRegisterType<span class="operator">&lt;</span>Boy<span class="operator">&gt;</span>(<span class="string">&quot;People&quot;</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="string">&quot;Boy&quot;</span>);
      qmlRegisterType<span class="operator">&lt;</span>Girl<span class="operator">&gt;</span>(<span class="string">&quot;People&quot;</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="string">&quot;Girl&quot;</span>);

      <span class="type"><a href="qqmlengine.html">QQmlEngine</a></span> engine;
      <span class="type"><a href="qqmlcomponent.html">QQmlComponent</a></span> component(<span class="operator">&amp;</span>engine<span class="operator">,</span> <span class="type">QUrl</span>(<span class="string">&quot;qrc:example.qml&quot;</span>));
      BirthdayParty <span class="operator">*</span>party <span class="operator">=</span> qobject_cast<span class="operator">&lt;</span>BirthdayParty <span class="operator">*</span><span class="operator">&gt;</span>(component<span class="operator">.</span>create());

      <span class="keyword">if</span> (party <span class="operator">&amp;</span><span class="operator">&amp;</span> party<span class="operator">-</span><span class="operator">&gt;</span>host()) {
          qWarning() <span class="operator">&lt;</span><span class="operator">&lt;</span> party<span class="operator">-</span><span class="operator">&gt;</span>host()<span class="operator">-</span><span class="operator">&gt;</span>name() <span class="operator">&lt;</span><span class="operator">&lt;</span> <span class="string">&quot;is having a birthday!&quot;</span>;

          <span class="keyword">if</span> (qobject_cast<span class="operator">&lt;</span>Boy <span class="operator">*</span><span class="operator">&gt;</span>(party<span class="operator">-</span><span class="operator">&gt;</span>host()))
              qWarning() <span class="operator">&lt;</span><span class="operator">&lt;</span> <span class="string">&quot;He is inviting:&quot;</span>;
          <span class="keyword">else</span>
              qWarning() <span class="operator">&lt;</span><span class="operator">&lt;</span> <span class="string">&quot;She is inviting:&quot;</span>;

          <span class="keyword">for</span> (<span class="type">int</span> ii <span class="operator">=</span> <span class="number">0</span>; ii <span class="operator">&lt;</span> party<span class="operator">-</span><span class="operator">&gt;</span>guestCount(); <span class="operator">+</span><span class="operator">+</span>ii) {
              Person <span class="operator">*</span>guest <span class="operator">=</span> party<span class="operator">-</span><span class="operator">&gt;</span>guest(ii);

              <span class="type">QDate</span> rsvpDate;
              <span class="type">QObject</span> <span class="operator">*</span>attached <span class="operator">=</span> qmlAttachedPropertiesObject<span class="operator">&lt;</span>BirthdayParty<span class="operator">&gt;</span>(guest<span class="operator">,</span> <span class="keyword">false</span>);

              <span class="keyword">if</span> (attached)
                  rsvpDate <span class="operator">=</span> attached<span class="operator">-</span><span class="operator">&gt;</span>property(<span class="string">&quot;rsvp&quot;</span>)<span class="operator">.</span>toDate();
              <span class="keyword">if</span> (rsvpDate<span class="operator">.</span>isNull())
                  qWarning() <span class="operator">&lt;</span><span class="operator">&lt;</span> <span class="string">&quot;   &quot;</span> <span class="operator">&lt;</span><span class="operator">&lt;</span> guest<span class="operator">-</span><span class="operator">&gt;</span>name() <span class="operator">&lt;</span><span class="operator">&lt;</span> <span class="string">&quot;RSVP date: Hasn't RSVP'd&quot;</span>;
              <span class="keyword">else</span>
                  qWarning() <span class="operator">&lt;</span><span class="operator">&lt;</span> <span class="string">&quot;   &quot;</span> <span class="operator">&lt;</span><span class="operator">&lt;</span> guest<span class="operator">-</span><span class="operator">&gt;</span>name() <span class="operator">&lt;</span><span class="operator">&lt;</span> <span class="string">&quot;RSVP date:&quot;</span> <span class="operator">&lt;</span><span class="operator">&lt;</span> qPrintable(rsvpDate<span class="operator">.</span>toString());
          }

      } <span class="keyword">else</span> {
          qWarning() <span class="operator">&lt;</span><span class="operator">&lt;</span> component<span class="operator">.</span>errors();
      }

      <span class="keyword">return</span> <span class="number">0</span>;
  }

</pre>
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<!-- @@@referenceexamples/attached/main.cpp -->
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