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| 22 | <font color="#004faf">All Classes</font></a>
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| 24 | <font color="#004faf">Main Classes</font></a>
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| 31 | </td>
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| 32 | <td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>Qt Netscape Plugin Extension</h1>
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| 33 |
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| 34 |
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| 35 | <p> <!-- index Netscape --><a name="Netscape"></a>
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| 36 | <p> The Qt Netscape Plugin software makes it easy to write browser plugins
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| 37 | that can be used on both Unix/Linux and MS-Windows, in Netscape,
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| 38 | Mozilla, and any other web browser supporting Netscape's LiveConnect
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| 39 | protocol. Modern versions of MSIE do not support this protocol. Use
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| 40 | the <a href="activeqt.html#ActiveQt">ActiveQt</a> Framework to develop plugins for these browsers.
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| 41 | <p> <h2> Information
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| 42 | </h2>
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| 43 | <a name="1"></a><p> The Netscape Plugin Extension consists of the follow classes:
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| 44 | <ul>
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| 45 | <li> <a href="qnplugin.html">QNPlugin</a>
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| 46 | <li> <a href="qnpinstance.html">QNPInstance</a>
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| 47 | <li> <a href="qnpwidget.html">QNPWidget</a>
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| 48 | <li> <a href="qnpstream.html">QNPStream</a>
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| 49 | </ul>
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| 50 | <p> <h2> How-to
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| 51 | </h2>
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| 52 | <a name="2"></a><p> <ol type=1>
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| 53 | <li> Download the
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| 54 | <a href="http://home.netscape.com/comprod/development_partners/plugin_api/index.html">Plugin SDK from Netscape</a>, and copy the following files from there to
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| 55 | <tt>$QTDIR/extensions/nsplugin/src</tt>
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| 56 | <ul>
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| 57 | <li> <tt>common/npwin.cpp</tt>
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| 58 | <li> <tt>common/npunix.c</tt>
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| 59 | <li> <tt>include/npapi.h</tt>
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| 60 | <li> <tt>include/npupp.h</tt>
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| 61 | <li> <tt>include/jri.h</tt>
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| 62 | <li> <tt>include/jri_md.h</tt>
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| 63 | <li> <tt>include/jritypes.h</tt>
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| 64 | </ul>
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| 65 | <li> Build the Netscape Plugin extension library, found in the
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| 66 | <tt>extensions/nsplugin/src</tt> directory of your Qt distribution.
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| 67 | This produces a static library to be linked with your plugin code.
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| 68 | <li> Read the <a href="qnplugin.html">plugin class documentation</a>, and
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| 69 | examine the <a href="nsplugin-examples.html">example plugins</a>.
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| 70 | <li> Do most of your development as a stand-alone Qt application - debugging
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| 71 | Netscape Plugins is cumbersome. You may want to use <tt>signal(2)</tt>
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| 72 | in your plugin to enable core-dumps if your browser disables them.
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| 73 | <li> Note the platform-specific build steps below.
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| 74 | <li> Read about the raw plugin interface
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| 75 | <a href="http://developer.netscape.com/docs/manuals/communicator/plugin/index.htm">in Netscape's handbook.</a>
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| 76 | <li> If files viewed by a plugin are provided by an HTTP server
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| 77 | (using a <a href="http://...">http://...</a> URL) then
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| 78 | the server must be configured to send the correct MIME type
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| 79 | for the file, e.g. by editing Apache's <tt>mime.types</tt> file.
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| 80 | If the files are viewed via a <a href="file://...">//...</a>
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| 81 | URL, then the browser will use the filename extension to decide
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| 82 | the file type (and hence the plugin to load) - the user may need
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| 83 | to set the filename extension in the Helpers or Applications
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| 84 | section of their browser preferences.
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| 85 | </ol>
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| 86 | <p> <h3> Building under X11
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| 87 | </h3>
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| 88 | <a name="2-1"></a><p> <ul>
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| 89 | <li> The Makefiles in the examples are appropriate for UNIX/X11.
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| 90 | <li> The user must install the resulting Shared Object in the Plugins
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| 91 | directory of the browser.
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| 92 | </ul>
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| 93 | <p> <h3> Building under Windows
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| 94 | </h3>
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| 95 | <a name="2-2"></a><p> <ul>
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| 96 | <li> For Netscape plugins to work, Qt needs to be in the system DLL
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| 97 | path or be compiled into the plugin as a static library.
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| 98 | <li> Plugins must be named <tt>np</tt><em>name</em><tt>.dll</tt>,
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| 99 | or the browser will ignore them.
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| 100 | <li> The link step must include:
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| 101 | <ul>
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| 102 | <li> <tt>/def:</tt><em>name</em><tt>.def</tt>
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| 103 | <li> <tt>/dll</tt>
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| 104 | <li> a compiled resource file defining the
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| 105 | file/MIME types accepted by the plugin.
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| 106 | </ul>
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| 107 | <li> The user must install the resulting DLL in the Plugins directory
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| 108 | of the browser.
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| 109 | </ul>
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| 110 | <p> <h2> Known Bugs and Limitations
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| 111 | </h2>
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| 112 | <a name="3"></a><p> The Qt-based LiveConnect Plugin binding code has a number of bugs and
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| 113 | limitations, but is sufficiently stable for many production
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| 114 | applications.
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| 115 | <p> <ul>
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| 116 | <li> Keyboard input only works in secondary windows (e.g. dialogs created by the plugin).
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| 117 | <li> You should not expect modality between the plugin and the browser to work.
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| 118 | <li> Netscape 4.78 on Unix/X11 tends to terminate with a bus error.
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| 119 | <li> Opaque resize behaviour is erratic due to browser behavior.
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| 120 | </ul>
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| 121 | <p>
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| 122 | <!-- eof -->
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| 123 | <p><address><hr><div align=center>
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| 124 | <table width=100% cellspacing=0 border=0><tr>
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| 125 | <td>Copyright © 2007
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| 126 | <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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| 127 | <td align=right><div align=right>Qt 3.3.8</div>
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| 128 | </table></div></address></body>
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