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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">Implicitly Shared Classes</h1>

These classes are normally-heavy classes which in Qt have been optimized by the use of reference counter and common data so they can be passed around.

The only important effect is that the classes listed here can be passed around as arguments efficiently, even though they may seem heavyweight.

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qbitarray.html">QBitArray</a></td><td>Array of bits</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qbrush.html">QBrush</a></td><td>Defines the fill pattern of shapes drawn by a QPainter</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qbytearray.html">QByteArray</a></td><td>Array of bytes</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qcache.html">QCache</a></td><td>Template class that provides a cache</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qcursor.html">QCursor</a></td><td>Mouse cursor with an arbitrary shape</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qfont.html">QFont</a></td><td>Font used for drawing text</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qfontinfo.html">QFontInfo</a></td><td>General information about fonts</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qfontmetrics.html">QFontMetrics</a></td><td>Font metrics information</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qfontmetricsf.html">QFontMetricsF</a></td><td>Font metrics information</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qhash.html">QHash</a></td><td>Template class that provides a hash-table-based dictionary</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qicon.html">QIcon</a></td><td>Scalable icons in different modes and states</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qimage.html">QImage</a></td><td>Hardware-independent pixmap that allows direct access to the pixel data, and can be used as a paint device</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qlinkedlist.html">QLinkedList</a></td><td>Template class that provides linked lists</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qlist.html">QList</a></td><td>Template class that provides lists</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qmap.html">QMap</a></td><td>Template class that provides a skip-list-based dictionary</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qmultihash.html">QMultiHash</a></td><td>Convenience QHash subclass that provides multi-valued hashes</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qmultimap.html">QMultiMap</a></td><td>Convenience QMap subclass that provides multi-valued maps</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qpair.html">QPair</a></td><td>Template class that stores a pair of items</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qpalette.html">QPalette</a></td><td>Color groups for each widget state</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qpen.html">QPen</a></td><td>Defines how a QPainter should draw lines and outlines of shapes</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qpicture.html">QPicture</a></td><td>Paint device that records and replays QPainter commands</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qpixmap.html">QPixmap</a></td><td>Off-screen, pixel-based paint device</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qpolygon.html">QPolygon</a></td><td>Vector of points</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qpolygonf.html">QPolygonF</a></td><td>Vector of floating point points</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qqueue.html">QQueue</a></td><td>Generic container that provides a queue</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qregexp.html">QRegExp</a></td><td>Pattern matching using regular expressions</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qset.html">QSet</a></td><td>Template class that provides a hash-table-based set</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qstack.html">QStack</a></td><td>Template class that provides a stack</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qstring.html">QString</a></td><td>Unicode character string</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qstringlist.html">QStringList</a></td><td>List of strings</td></tr>

<tr valign="top" bgcolor="#f0f0f0"><td><a href="qvector.html">QVector</a></td><td>Template class that provides a dynamic array</td></tr>

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