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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
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<html>
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<head>
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<title>LibVNCServer</title>
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</head>
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<body>
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<h1>LibVNCServer</h1>
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<br>
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<h2> News </h2>
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<strong>2003/02/09</strong> Version 0.5 is out! Features include autoconf based configure, rpm package (YMMV), cleanup of directory structure, NEW x11vnc! ZRLE encoding! HTTP tunnelling through LibVNCServer's HTTP support! Many bug fixes!
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<p>
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<strong>2002/07/28</strong> Version 0.4 is out! Biggest feature: NewFB encoding. Quite a few bugfixes also (Thanks to all!).
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<p>
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<strong>2001/12/14</strong> A new version of
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<a href=http://prdownloads.sourceforge.net/libvncserver/rdesktop-1.1.0+vnc-0.2.tar.gz>rdesktop+vnc</a> is available!
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(Includes support for other platforms keyboard mapping with plain rdesktop!)
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<p>
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<strong>2001/10/23</strong> Added a link to my homepage at the end.
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<p>
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<strong>2001/10/18</strong> I released the rdp2vnc extensions as well as
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patches for general keyboard handling, working inside Xvnc and
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process_text2 (the famous "font:" error) to rdesktop. Please find it on
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the <a href=http://sourceforge.net/project/showfiles.php?group_id=32584>
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download page</a>.
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<p>
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<strong>2001/10/13</strong> A snapshot of
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<a href=http://sourceforge.net/project/showfiles.php?group_id=32584>
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LibVNCServer</a> and
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<a href=http://sourceforge.net/project/showfiles.php?group_id=32584>
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RDP2VNC</a>
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is now available. You can also download the
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<a href=http://sourceforge.net/project/showfiles.php?group_id=32584>
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diff</a> against rdesktop-1.1.0.
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rdp2vnc also contains the patches for keyboards other than PC keyboards,
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and you can specify "-k fr" again.
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<p><br>
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<h2> Introduction </h2>
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If you don't know VNC, have a look at
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<a href=http://www.uk.research.att.com/vnc/>the original VNC</a> or at
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<a href=http://www.tridiavnc.com/>Tridia VNC</a>, who also have commercial
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support for it.
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<p>
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Now that you know what it is, maybe you want to make your own server.
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If this is not the case, you can ignore the rest of this page an go on
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surfing the internet.
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<p>
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Now that you want to make a VNC server, that is, a server which speaks
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the RFB protocol, you can download this library from
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<a href=http://sf.net/projects/libvncserver/>sourceforge</a>.
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<p>
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The simplest server looks like this:<br><br>
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<pre>
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#include "rfb.h"
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int main(int argc,char** argv)
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{
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rfbScreenInfoPtr server=rfbGetScreen(&argc,argv,400,300,8,3,4);
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server->frameBuffer=malloc(400*300*4);
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rfbInitServer(server);
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rfbRunEventLoop(server,-1,FALSE);
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return(0);
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}
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</pre>
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This sample creates a 400x300 frame buffer in true colour. There are
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4 bytes per pixel, because 3 (which are only used instead of all 4) is
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such an odd number. Then the server is initialized and a blocking event
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loop is started.
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<p>
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Of course, this program only shows rubbish (whatever is in the frame
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buffer you malloc'd), but it proves that writing a server can be
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very easy.
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<p>
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For details (especially if you want to write a real server) look into the
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provided examples, pnmshow.c and example.c, and into the README. You find
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there documentation for much more complicated servers.
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<p>
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Serious comments, suggestions, pizzas, etc. go to
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<a href=mailto:Johannes.Schindelin@RuBBISHgmx.de>me</a>
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(delete the RuBBISH).
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<p>
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Here are some links:
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<p>
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LibVNCServer is an adapted
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<a href=http://www.osxvnc.com/>OSXvnc-server</a> by
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<a href=mailto:mcguirk@incompleteness.net>Dan McGuirk</a>,
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which is in turn an adapted original
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<a href=http://www.uk.research.att.com/vnc/>Xvnc</a>.
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<p>
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I use it to to drive a
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<strong>Windows Terminal Server (RDP) to RFB converter</strong> with it.
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Much work has been done to make
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<a href=http://www.rdesktop.org/>rdesktop</a>
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a good X client to Windows Terminal Services (both NT and 2000, see
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<a href=http://bibl4.oru.se/projects/rdesktop/>rdesktop patches</a>).
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Previous work was done by <a href=mailto:tme23@cam.ac.uk>Tim Edmonds</a>
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who has set up such a converter named
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<a href=http://www-lce.eng.cam.ac.uk/~tme23/vdesktop/>vdesktop</a>
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including a single client server and a multi client server, rdp2vnc.
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Unfortunately he used the example code from rfbcounter, which can encode only
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RRE, which is not a good compression.
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<p>
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If you want to know about other of my projects, look at
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<a href=http://wrzx69.rz.uni-wuerzburg.de/~gene099/index.html>my homepage</a>.
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<hr>
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Project hosted on the fantastic
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<A href="http://sourceforge.net">
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<IMG src="http://sourceforge.net/sflogo.php?group_id=32584"
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width="88" height="31" border="0" alt="SourceForge Logo"></A><br>
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<!-- Created: Thu Sep 27 12:27:41 MESZ 2001 -->
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<!-- hhmts start -->
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Last modified: Sun Feb 09 06:27:38 MESZ 2003
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<!-- hhmts end -->
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</body>
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</html>
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