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</style></head><body><table border="0" cellpadding="0" cellspacing="0" width="100%"><tr /><td align="left" valign="top" width="32"><img align="left" border="0" height="32" src="images/rb-logo.png" width="32" /></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="modules.html"><font color="#004faf">Modules</font></a></td></table><h1 align="center">QAbstractExtensionFactory Class Reference<br /><sup><sup>[<a href="qtdesigner.html">QtDesigner</a> module]</sup></sup></h1><p>The QAbstractExtensionFactory class provides an interface for
extension factories in Qt Designer. <a href="#details">More...</a></p>
<p>Inherited by <a href="qextensionfactory.html">QExtensionFactory</a>.</p><h3>Methods</h3><ul><li><div class="fn" /><b><a href="qabstractextensionfactory.html#QAbstractExtensionFactory">__init__</a></b> (<i>self</i>)</li><li><div class="fn" /><b><a href="qabstractextensionfactory.html#QAbstractExtensionFactory-2">__init__</a></b> (<i>self</i>, QAbstractExtensionFactory)</li><li><div class="fn" />QObject <b><a href="qabstractextensionfactory.html#extension">extension</a></b> (<i>self</i>, QObject <i>object</i>, QString <i>iid</i>)</li></ul><a name="details" /><hr /><h2>Detailed Description</h2><p>The QAbstractExtensionFactory class provides an interface for
extension factories in Qt Designer.</p>
<p>QAbstractExtensionFactory is not intended to be instantiated
directly; use the <a href="qextensionfactory.html">QExtensionFactory</a> instead.</p>
<p>In <i>Qt Designer</i>, extension factories are used to look up
and create named extensions as they are required. For that reason,
when implementing a custom extension, you must also create a
<a href="qextensionfactory.html">QExtensionFactory</a>, i.e a class
that is able to make an instance of your extension, and register it
using <i>Qt Designer</i>'s <a href="qextensionmanager.html">extension manager</a>.</p>
<p>When an extension is required, <i>Qt Designer</i>'s <a href="qextensionmanager.html">extension manager</a> will run through all
its registered factories calling <a href="qextensionfactory.html#createExtension">QExtensionFactory.createExtension</a>()
for each until the first one that is able to create the requested
extension for the selected object, is found. This factory will then
make an instance of the extension.</p>
<hr /><h2>Method Documentation</h2><h3 class="fn"><a name="QAbstractExtensionFactory" />QAbstractExtensionFactory.__init__ (<i>self</i>)</h3><h3 class="fn"><a name="QAbstractExtensionFactory-2" />QAbstractExtensionFactory.__init__ (<i>self</i>, <a href="qabstractextensionfactory.html">QAbstractExtensionFactory</a>)</h3><h3 class="fn"><a name="extension" /><a href="qobject.html">QObject</a> QAbstractExtensionFactory.extension (<i>self</i>, <a href="qobject.html">QObject</a> <i>object</i>, QString <i>iid</i>)</h3><p>This method is abstract and should be reimplemented in any sub-class.</p><p>Returns the extension specified by <i>iid</i> for the given
<i>object</i>.</p>
<address><hr /><div align="center"><table border="0" cellspacing="0" width="100%"><tr class="address"><td align="left" width="25%">PyQt 4.10.3 for X11</td><td align="center" width="50%">Copyright © <a href="http://www.riverbankcomputing.com">Riverbank Computing Ltd</a> and <a href="http://www.qtsoftware.com">Nokia</a> 2012</td><td align="right" width="25%">Qt 4.8.5</td></tr></table></div></address></body></html>
