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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>Trivial Example</h1>

 

<p> This example is trivial, and thus useful for
investigating problems you might have installing the
extension.
<p> To build the example, you must first build the
<a href="netscape-plugin.html">Qt Netscape Plugin Extension</a> library.
Then type <tt>make</tt> in <tt>extensions/nsplugin/examples/trivial/</tt>
and copy the resulting <tt>trivial.so</tt> or <tt>nptrivial.dll</tt>
to the Plugins directory of your WWW browser.
<p> <EMBED TYPE=trivial/very WIDTH=100 HEIGHT=100>
<p> <hr>
Implementation:
<p> <pre>// Qt stuff
#include "qnp.h"
#include &lt;<a href="qpainter-h.html">qpainter.h</a>&gt;
#include &lt;<a href="qmessagebox-h.html">qmessagebox.h</a>&gt;

class Trivial : public <a href="qnpwidget.html">QNPWidget</a> {
    <a href="metaobjects.html#Q_OBJECT">Q_OBJECT</a>
public:
    void mouseReleaseEvent(QMouseEvent* event)
    {
<a name="x2736"></a>        QMessageBox::<a href="qmessagebox.html#aboutQt">aboutQt</a>(this);
    }

    void paintEvent(QPaintEvent* event)
    {
        <a href="qpainter.html">QPainter</a> p(this);
<a name="x2739"></a>        p.<a href="qpainter.html#setClipRect">setClipRect</a>(event-&gt;rect());
        int w = width();
<a name="x2737"></a>        p.<a href="qpainter.html#drawRect">drawRect</a>(rect());
<a name="x2738"></a>        p.<a href="qpainter.html#drawText">drawText</a>(w/8, 0, w-w/4, height(), AlignCenter|WordBreak, "Trivial!");
    }
};

class TrivialInstance : public <a href="qnpinstance.html">QNPInstance</a> {
    Q_OBJECT
public:
    <a href="qnpwidget.html">QNPWidget</a>* newWindow()
    {
        return new Trivial;
    }

    void print(QPainter* p)
    {
        p-&gt;<a href="qpainter.html#drawText">drawText</a>(0,0,"Hello");
    }
};

class TrivialPlugin : public <a href="qnplugin.html">QNPlugin</a> {
public:
    <a href="qnpinstance.html">QNPInstance</a>* newInstance()
    {
        return new TrivialInstance;
    }

    const char* getMIMEDescription() const
    {
        return "trivial/very:xxx:Trivial and useless";
    }

    const char * getPluginNameString() const
    {
        return "Trivial Qt-based Plugin";
    }

    const char * getPluginDescriptionString() const
    {
        return "A Qt-based LiveConnected plug-in that does nothing";
    }

};

QNPlugin* QNPlugin::create()
{
    return new TrivialPlugin;
}

#include "trivial.moc"
</pre>

<p>See also <a href="nsplugin-examples.html">Netscape Plugin Examples</a>.

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