title: Parse a XML file in Qt
body: <p>Let's say I have an XML file like this:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;name&gt;
      &lt;id&gt;1&lt;/id&gt;
  &lt;/name&gt;
  </code></pre>
  
  <p>How can I parse it and get the value of <code>id</code>?</p>
  
  <pre><code>std::string id = ...;
  </code></pre>