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130 lines
5.3 KiB
130 lines
5.3 KiB
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/extensions/nsplugin/doc/index.doc:14 -->
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>TQt Netscape Plugin Extension</title>
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<font color="#004faf">Home</font></a>
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<font color="#004faf">All Classes</font></a>
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<font color="#004faf">Main Classes</font></a>
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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>TQt Netscape Plugin Extension</h1>
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<p> <!-- index Netscape --><a name="Netscape"></a>
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<p> The TQt Netscape Plugin software makes it easy to write browser plugins
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that can be used on both Unix/Linux and MS-Windows, in Netscape,
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Mozilla, and any other web browser supporting Netscape's LiveConnect
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protocol. Modern versions of MSIE do not support this protocol. Use
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the <a href="activentqt.html#ActiveTQt">ActiveTQt</a> Framework to develop plugins for these browsers.
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<p> <h2> Information
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</h2>
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<a name="1"></a><p> The Netscape Plugin Extension consists of the follow classes:
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<ul>
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<li> <a href="qnplugin.html">TQNPlugin</a>
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<li> <a href="qnpinstance.html">TQNPInstance</a>
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<li> <a href="qnpwidget.html">TQNPWidget</a>
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<li> <a href="qnpstream.html">TQNPStream</a>
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</ul>
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<p> <h2> How-to
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</h2>
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<a name="2"></a><p> <ol type=1>
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<li> Download the
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<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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<tt>$TQTDIR/extensions/nsplugin/src</tt>
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<ul>
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<li> <tt>common/npwin.cpp</tt>
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<li> <tt>common/npunix.c</tt>
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<li> <tt>include/npapi.h</tt>
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<li> <tt>include/npupp.h</tt>
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<li> <tt>include/jri.h</tt>
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<li> <tt>include/jri_md.h</tt>
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<li> <tt>include/jritypes.h</tt>
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</ul>
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<li> Build the Netscape Plugin extension library, found in the
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<tt>extensions/nsplugin/src</tt> directory of your TQt distribution.
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This produces a static library to be linked with your plugin code.
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<li> Read the <a href="qnplugin.html">plugin class documentation</a>, and
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examine the <a href="nsplugin-examples.html">example plugins</a>.
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<li> Do most of your development as a stand-alone TQt application - debugging
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Netscape Plugins is cumbersome. You may want to use <tt>signal(2)</tt>
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in your plugin to enable core-dumps if your browser disables them.
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<li> Note the platform-specific build steps below.
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<li> Read about the raw plugin interface
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<a href="http://developer.netscape.com/docs/manuals/communicator/plugin/index.htm">in Netscape's handbook.</a>
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<li> If files viewed by a plugin are provided by an HTTP server
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(using a <a href="http://...">http://...</a> URL) then
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the server must be configured to send the correct MIME type
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for the file, e.g. by editing Apache's <tt>mime.types</tt> file.
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If the files are viewed via a <a href="file://...">//...</a>
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URL, then the browser will use the filename extension to decide
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the file type (and hence the plugin to load) - the user may need
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to set the filename extension in the Helpers or Applications
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section of their browser preferences.
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</ol>
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<p> <h3> Building under X11
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</h3>
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<a name="2-1"></a><p> <ul>
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<li> The Makefiles in the examples are appropriate for UNIX/X11.
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<li> The user must install the resulting Shared Object in the Plugins
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directory of the browser.
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</ul>
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<p> <h3> Building under Windows
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</h3>
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<a name="2-2"></a><p> <ul>
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<li> For Netscape plugins to work, TQt needs to be in the system DLL
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path or be compiled into the plugin as a static library.
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<li> Plugins must be named <tt>np</tt><em>name</em><tt>.dll</tt>,
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or the browser will ignore them.
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<li> The link step must include:
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<ul>
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<li> <tt>/def:</tt><em>name</em><tt>.def</tt>
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<li> <tt>/dll</tt>
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<li> a compiled resource file defining the
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file/MIME types accepted by the plugin.
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</ul>
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<li> The user must install the resulting DLL in the Plugins directory
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of the browser.
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</ul>
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<p> <h2> Known Bugs and Limitations
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</h2>
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<a name="3"></a><p> The TQt-based LiveConnect Plugin binding code has a number of bugs and
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limitations, but is sufficiently stable for many production
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applications.
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<p> <ul>
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<li> Keyboard input only works in secondary windows (e.g. dialogs created by the plugin).
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<li> You should not expect modality between the plugin and the browser to work.
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<li> Netscape 4.78 on Unix/X11 tends to terminate with a bus error.
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<li> Opaque resize behaviour is erratic due to browser behavior.
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</ul>
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<p>
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<!-- eof -->
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<p><address><hr><div align=center>
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>TQt 3.3.8</div>
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</table></div></address></body>
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