In order to build it, you need the LibVNCClient (LibVNCServer) library (version 0.9.1 or newer required): http://sourceforge.net/project/showfiles.php?group_id=32584&package_id=24717
Copy these files into a folder and run: qmake make
In order to try it out, type: ./krdc-vnc-qtonly vnc://:password@server:1 1 (the last argument defines the quality as second argument (1-3, where 1 is the best). Default is 2.)
If you use these code in your project, make sure that QTONLY is defined (see krdc-vnc-qtonly.pro).
If you do any fixes or improvements in these files, please backport them to the original sources. Please send a patch with the changes to <uwolfer @ kde.org>. Thanks a lot!
Please keep their rules