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<td align="right" valign="top" width="230"><img src="images/trolltech-logo.png" align="right" width="203" height="32" border="0" /></td></tr></table><h1 align="center">Q3FilePreview Class Reference</h1>

<p>The Q3FilePreview class provides file previewing in <a href="q3filedialog.html">Q3FileDialog</a>. <a href="#details">More...</a></p>

<pre>#include <Q3FilePreview></pre><p><b>This class is part of the Qt 3 support library.</b> It is provided to keep old source code working. We strongly advise against using it in new code. See the <a href="porting4.html">Porting Guide</a> for more information.</p>

<p>Part of the <a href="qt3support.html">Qt3Support</a> module.</p>

<ul>

<li><a href="q3filepreview-members.html">List of all members, including inherited members</a></li>

</ul>

<h3>Public Functions</h3>

<ul>

<li><div class="fn"/><b><a href="q3filepreview.html#Q3FilePreview">Q3FilePreview</a></b> ()</li>

<li><div class="fn"/>virtual <b><a href="q3filepreview.html#dtor.Q3FilePreview">~Q3FilePreview</a></b> ()</li>

<li><div class="fn"/>virtual void <b><a href="q3filepreview.html#previewUrl">previewUrl</a></b> ( const Q3Url & <i>url</i> ) = 0</li>

</ul>

<hr />

<h2>Detailed Description</h2>

<p>The Q3FilePreview class provides file previewing in <a href="q3filedialog.html">Q3FileDialog</a>.</p>

<p>This class is an abstract base class which is used to implement widgets that can display a preview of a file in a <a href="q3filedialog.html">Q3FileDialog</a>.</p>

<p>You must derive the preview widget from both <a href="qwidget.html">QWidget</a> and from this class. Then you must reimplement this class's <a href="q3filepreview.html#previewUrl">previewUrl</a>() function, which is called by the file dialog if the preview of a file (specified as a URL) should be shown.</p>

<p>See also <a href="q3filedialog.html#previewMode-prop">Q3FileDialog::setPreviewMode</a>(), <a href="q3filedialog.html#setContentsPreview">Q3FileDialog::setContentsPreview</a>(), <a href="q3filedialog.html#setInfoPreview">Q3FileDialog::setInfoPreview</a>(), <a href="q3filedialog.html#infoPreview-prop">Q3FileDialog::setInfoPreviewEnabled</a>(), <a href="q3filedialog.html#contentsPreview-prop">Q3FileDialog::setContentsPreviewEnabled</a>().</p>

<hr />

<h2>Member Function Documentation</h2>

<h3 class="fn"><a name="Q3FilePreview"></a>Q3FilePreview::Q3FilePreview ()</h3>

<p>Constructs the <a href="q3filepreview.html">Q3FilePreview</a>.</p>

<h3 class="fn"><a name="dtor.Q3FilePreview"></a>Q3FilePreview::~Q3FilePreview ()  <tt> [virtual]</tt></h3>

<p>Destroys the file preview object.</p>

<h3 class="fn"><a name="previewUrl"></a>void Q3FilePreview::previewUrl ( const <a href="q3url.html">Q3Url</a> & <i>url</i> )  <tt> [pure virtual]</tt></h3>

<p>This function is called by <a href="q3filedialog.html">Q3FileDialog</a> if a preview for the <i>url</i> should be shown. Reimplement this function to provide file previewing.</p>

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