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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>QNPWidget Class Reference</h1>
<p>The QNPWidget class provides a QWidget that is a Web-browser plugin window.
<p>This class is part of the <b>Qt NSPlugin Extension</b>.
<a href="#details">More...</a>
<p><tt>#include <<a href="qnp-h.html">qnp.h</a>></tt>
<p>Inherits <a href="qwidget.html">QWidget</a>.
<p><a href="qnpwidget-members.html">List of all member functions.</a>
<h2>Public Members</h2>
<ul>
<li><div class=fn><a href="#QNPWidget"><b>QNPWidget</b></a> ()</div></li>
<li><div class=fn><a href="#~QNPWidget"><b>~QNPWidget</b></a> ()</div></li>
<li><div class=fn>virtual void <a href="#enterInstance"><b>enterInstance</b></a> ()</div></li>
<li><div class=fn>virtual void <a href="#leaveInstance"><b>leaveInstance</b></a> ()</div></li>
<li><div class=fn>QNPInstance * <a href="#instance"><b>instance</b></a> ()</div></li>
</ul>
<hr><a name="details"></a><h2>Detailed Description</h2>
<p> This class is defined in the <b>Qt NSPlugin Extension</b>, which can be found in the <tt>qt/extensions</tt> directory. It is not included in the main Qt API.
<p>
The QNPWidget class provides a <a href="qwidget.html">QWidget</a> that is a Web-browser plugin window.
<p>
<p> Derive from QNPWidget to create a widget that can be used as a
Browser plugin window, or create one and add child widgets.
Instances of QNPWidget may only be created
when <a href="qnpinstance.html#newWindow">QNPInstance::newWindow</a>() is called by the browser.
<p> A common way to develop a plugin widget is to develop it as a stand-alone
application window, then make it a <em>child</em> of a plugin widget to use
it as a browser plugin. The technique is:
<p> <pre>
class MyPluginWindow : public QNPWidget {
<a href="qwidget.html">QWidget</a>* child;
public:
MyPluginWindow()
{
// Some widget that is normally used as a top-level widget
child = new MyIndependentlyDevelopedWidget();
// Use the background color of the web page
child-><a href="qwidget.html#setBackgroundColor">setBackgroundColor</a>( <a href="qwidget.html#backgroundColor">backgroundColor</a>() );
// Fill the plugin widget
child-><a href="qwidget.html#setGeometry">setGeometry</a>( 0, 0, width(), height() );
}
void resizeEvent(QResizeEvent*)
{
// Fill the plugin widget
child-><a href="qwidget.html#resize">resize</a>(<a href="qwidget.html#size">size</a>());
}
};
</pre>
<p> The default implementation is an empty window.
<hr><h2>Member Function Documentation</h2>
<h3 class=fn><a name="QNPWidget"></a>QNPWidget::QNPWidget ()
</h3>
Creates a QNPWidget.
<h3 class=fn><a name="~QNPWidget"></a>QNPWidget::~QNPWidget ()
</h3>
Destroys the window. This will be called by the plugin binding code
when the window is no longer required. The Web-browser will delete windows
when they leave the page. The bindings will change the <a href="qwidget.html#winId">QWidget::winId</a>()
of the window when the window is resized, but this should not affect
normal widget behavior.
<h3 class=fn>void <a name="enterInstance"></a>QNPWidget::enterInstance ()<tt> [virtual]</tt>
</h3>
Called when the mouse enters the plugin window. Does nothing by
default.
<p>Example: <a href="grapher-nsplugin-example.html#x2605">grapher/grapher.cpp</a>.
<h3 class=fn><a href="qnpinstance.html">QNPInstance</a> * <a name="instance"></a>QNPWidget::instance ()
</h3>
Returns the instance for which this widget is the window.
<h3 class=fn>void <a name="leaveInstance"></a>QNPWidget::leaveInstance ()<tt> [virtual]</tt>
</h3>
Called when the mouse leaves the plugin window. Does nothing by
default.
<p>Example: <a href="grapher-nsplugin-example.html#x2606">grapher/grapher.cpp</a>.
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