FVNC

Older release: June 20, 2001 Last release: July 9, 2001

FVNC

Welcome! FVNC is a scaling version of the Xt-based vncviewer. Just like VNC, it's GPL. FVNC also offers a diff facility that, in some cases, will achieve bandwidth savings along the path from the vncviewer to the real X display.

To use FVNC, download the patch (older version), apply it to the VNC 3.3.3r2 sources, and compile the vncviewer as usual:

    tar xzvf vnc-3.3.3r2_unixsrc.tgz
    zcat fvnc_diff_20010709.gz | patch -p0
    cd vnc_unixsrc
    xmkmf
    make World

Optionally, copy the just produced vncviewer to some directory of binaries, eventually renaming it to "fvnc", in order to distinguish it from the original vncviewer. FVNC accepts the following additional command-line switches:

• -scale n, where n=-2, 1, 2, 3 or 4 is the scaling factor.
• -nostats (won't display stats on the title bar)
• -nodiff (won't try computing diffs)

Example:

    $ fvnc :12:0 -scale 2 -encodings "raw copyrect"

FVNC Limitations

• The real X display must be running in 15 or 16 bpp mode.
• The only supported encodings are raw and copyrect.
• bgr233 transport is not supported.

ALARM

The small program alarm.c.gz is also oferred as a very simple bandwidth-wasting application. As this is a pretty small piece of code, we didn't attach a license to it. Please consider it in the public domain.

Acknowledgements

Ricardo Ueda Karpischek acknowledges William George Schauff and Pedro Maldonado from BARCO for oferring him the opportunity where FVNC was developed.

Links

VNC is at http://www.uk.research.att.com/vnc/.