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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>QSqlDriverPlugin Class Reference</h1>
<p>The QSqlDriverPlugin class provides an abstract base for custom QSqlDriver plugins.
<a href="#details">More...</a>
<p><tt>#include <<a href="qsqldriverplugin-h.html">qsqldriverplugin.h</a>></tt>
<p><a href="qsqldriverplugin-members.html">List of all member functions.</a>
<h2>Public Members</h2>
<ul>
<li><div class=fn><a href="#QSqlDriverPlugin"><b>QSqlDriverPlugin</b></a> ()</div></li>
<li><div class=fn><a href="#~QSqlDriverPlugin"><b>~QSqlDriverPlugin</b></a> ()</div></li>
<li><div class=fn>virtual QStringList <a href="#keys"><b>keys</b></a> () const = 0</div></li>
<li><div class=fn>virtual QSqlDriver * <a href="#create"><b>create</b></a> ( const QString & key ) = 0</div></li>
</ul>
<hr><a name="details"></a><h2>Detailed Description</h2>
The QSqlDriverPlugin class provides an abstract base for custom <a href="qsqldriver.html">QSqlDriver</a> plugins.
<p> The SQL driver plugin is a simple plugin interface that makes it easy
to create your own SQL driver plugins that can be loaded dynamically
by Qt.
<p> Writing a SQL plugin is achieved by subclassing this base class,
reimplementing the pure virtual functions <a href="#keys">keys</a>() and <a href="#create">create</a>(), and
exporting the class with the Q_EXPORT_PLUGIN macro. See
the SQL plugins that comes with Qt for example implementations (in
<tt>$QTDIR/plugins/src/sqldrivers</tt>). Read the <a href="plugins-howto.html">plugins documentation</a> for more
information on plugins.
<p>See also <a href="plugins.html">Plugins</a>.
<hr><h2>Member Function Documentation</h2>
<h3 class=fn><a name="QSqlDriverPlugin"></a>QSqlDriverPlugin::QSqlDriverPlugin ()
</h3>
Constructs a SQL driver plugin. This is invoked automatically by
the Q_EXPORT_PLUGIN macro.
<h3 class=fn><a name="~QSqlDriverPlugin"></a>QSqlDriverPlugin::~QSqlDriverPlugin ()
</h3>
Destroys the SQL driver plugin.
<p> You never have to call this explicitly. Qt destroys a plugin
automatically when it is no longer used.
<h3 class=fn><a href="qsqldriver.html">QSqlDriver</a> * <a name="create"></a>QSqlDriverPlugin::create ( const <a href="qstring.html">QString</a> & key )<tt> [pure virtual]</tt>
</h3>
<p> Creates and returns a <a href="qsqldriver.html">QSqlDriver</a> object for the driver key <em>key</em>.
The driver key is usually the class name of the required driver.
<p> <p>See also <a href="#keys">keys</a>().
<h3 class=fn><a href="qstringlist.html">QStringList</a> <a name="keys"></a>QSqlDriverPlugin::keys () const<tt> [pure virtual]</tt>
</h3>
<p> Returns the list of driver keys this plugin supports.
<p> These keys are usually the class names of the custom drivers that are
implemented in the plugin.
<p> <p>See also <a href="#create">create</a>().
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