<?xml version="1.0" encoding="iso-8859-1"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <!-- qpixmapcache.cpp --> <head> <title>Qt 4.6: Key Class Reference</title> <link href="classic.css" rel="stylesheet" type="text/css" /> </head> <body> <a name="//apple_ref/cpp/cl/QPixmapCache/Key"></a> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr> <td align="left" valign="top" width="32"><a href="http://qt.nokia.com/"><img src="images/qt-logo.png" align="left" border="0" /></a></td> <td width="1"> </td><td class="postheader" valign="center"><a href="index.html"><font color="#004faf">Home</font></a> · <a href="classes.html"><font color="#004faf">All Classes</font></a> · <a href="functions.html"><font color="#004faf">All Functions</font></a> · <a href="overviews.html"><font color="#004faf">Overviews</font></a></td></tr></table><h1 class="title">Key Class Reference<br /><span class="small-subtitle">(QPixmapCache::Key)<br />[<a href="qtgui.html">QtGui</a> module]</span> </h1> <p>The QPixmapCache::Key class can be used for efficient access to the <a href="qpixmapcache.html">QPixmapCache</a>. <a href="#details">More...</a></p> <pre> #include <<a href="qpixmapcache.html">QPixmapCache</a>></pre><p>This class was introduced in Qt 4.6.</p> <ul> <li><a href="qpixmapcache-key-members.html">List of all members, including inherited members</a></li> </ul> <hr /> <a name="public-functions"></a> <h2>Public Functions</h2> <table class="alignedsummary" border="0" cellpadding="0" cellspacing="0" width="100%"> <tr><td class="memItemLeft" align="right" valign="top"></td><td class="memItemRight" valign="bottom"><b><a href="qpixmapcache-key.html#Keyx">Key</a></b> ()</td></tr> <tr><td class="memItemLeft" align="right" valign="top"></td><td class="memItemRight" valign="bottom"><b><a href="qpixmapcache-key.html#dtor.Key">~Key</a></b> ()</td></tr> </table> <a name="details"></a> <hr /> <h2>Detailed Description</h2> <p>The QPixmapCache::Key class can be used for efficient access to the <a href="qpixmapcache.html">QPixmapCache</a>.</p> <p>Use <a href="qpixmapcache.html#insert">QPixmapCache::insert</a>() to receive an instance of Key generated by the pixmap cache. You can store the key in your own objects for a very efficient one-to-one object-to-pixmap mapping.</p> <hr /> <h2>Member Function Documentation</h2> <a name="//apple_ref/cpp/instm/QPixmapCache::Key/Key"></a> <h3 class="fn"><a name="Keyx"></a>Key::Key ()</h3> <p>Constructs an empty Key object.</p> <a name="//apple_ref/cpp/instm/QPixmapCache::Key/~Key"></a> <h3 class="fn"><a name="dtor.Key"></a>Key::~Key ()</h3> <p>Destroys the key.</p> <p /><address><hr /><div align="center"> <table width="100%" cellspacing="0" border="0"><tr class="address"> <td width="40%" align="left">Copyright © 2010 Nokia Corporation and/or its subsidiary(-ies)</td> <td width="20%" align="center"><a href="trademarks.html">Trademarks</a></td> <td width="40%" align="right"><div align="right">Qt 4.6.3</div></td> </tr></table></div></address></body> </html>