Implemented support for DesktopName pseudo encoding, which allows
updating the desktop name on the fly.

Tested in ThinLinc since 2008-01-07. 



git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@3549 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/common/rfb/SMsgWriter.h b/common/rfb/SMsgWriter.h
index 6f7feeb..959f865 100644
--- a/common/rfb/SMsgWriter.h
+++ b/common/rfb/SMsgWriter.h
@@ -76,6 +76,8 @@
     // but will write the relevant pseudo-rectangle as part of the next update.
     virtual bool writeSetDesktopSize()=0;
 
+    virtual bool writeSetDesktopName()=0;
+
     // Like setDesktopSize, we can't just write out a setCursor message
     // immediately on a V3 writer.  Instead of calling writeSetCursor()
     // directly, you must call cursorChange(), and then invoke writeSetCursor()