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<title>QFilePreview Class</title>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QFilePreview Class Reference</h1>

<p>The QFilePreview class provides file previewing in QFileDialog.
<a href="#details">More...</a>
<p><tt>#include &lt;<a href="qfiledialog-h.html">qfiledialog.h</a>&gt;</tt>
<p><a href="qfilepreview-members.html">List of all member functions.</a>
<h2>Public Members</h2>
<ul>
<li class=fn><a href="#QFilePreview"><b>QFilePreview</b></a> ()</li>
<li class=fn>virtual void <a href="#previewUrl"><b>previewUrl</b></a> ( const&nbsp;QUrl&nbsp;&amp;&nbsp;url ) = 0</li>
</ul>
<hr><a name="details"></a><h2>Detailed Description</h2>


The QFilePreview class provides file previewing in <a href="qfiledialog.html">QFileDialog</a>.
<p> This class is an abstract base class which is used to implement
widgets that can display a preview of a file in a QFileDialog.
<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="#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> See also <a href="qfiledialog.html#setPreviewMode">QFileDialog::setPreviewMode</a>(), <a href="qfiledialog.html#setContentsPreview">QFileDialog::setContentsPreview</a>(),
<a href="qfiledialog.html#setInfoPreview">QFileDialog::setInfoPreview</a>(), <a href="qfiledialog.html#setInfoPreviewEnabled">QFileDialog::setInfoPreviewEnabled</a>(),
<a href="qfiledialog.html#setContentsPreviewEnabled">QFileDialog::setContentsPreviewEnabled</a>().
<p> For an example of a preview widget see qt/examples/qdir/qdir.cpp.
<p>See also <a href="misc.html">Miscellaneous Classes</a>.

<hr><h2>Member Function Documentation</h2>
<h3 class=fn><a name="QFilePreview"></a>QFilePreview::QFilePreview ()
</h3>
Constructs the QFilePreview.

<h3 class=fn>void <a name="previewUrl"></a>QFilePreview::previewUrl ( const&nbsp;<a href="qurl.html">QUrl</a>&nbsp;&amp;&nbsp;url )<tt> [pure virtual]</tt>
</h3>

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

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