[Bug 156705] Re: Please make VNC4 support exporting a single window

[Cefn]

A workaround of sorts for this limitation, using packages from the
Ubuntu repository, is to launch a separate Gnome session within a nested
Xserver like Xephyr. Xephyr can be installed using apt-get.

You can then share just this desktop, by pointing and clicking within
the GUI of the the conventional remote desktop sharing wizard, but
inside the nested Gnome session you've launched.

I wanted to permit my GF to also control the LastFM program on my
desktop. The script I use to launch the gnome session looks like...

#!/bin/bash
startx /usr/bin/gnome-session -- /usr/bin/Xephyr :1 -screen 800x600 &

I then launch LastFM inside this window where she can get at it with the
password configured through the 'Remote Desktop' gui (the Gnome Menu
name for the package vino) inside the newly launched Gnome session.

The configuration made through vino seems to be long-lived between
sessions, so only has to be done once for each display port you ever
launch. The next time the launch script is run, it's automatically
password accessible.

If you wanted to make things more secure, you could try launching a
Xephyr window on behalf of a different user account. I haven't tried
this, and don't know how this plays with Dbus, Pulseaudio and the like
when there are effectively two users logged in to the same multimedia
hardware device.

-- 
Please make VNC4 support exporting a single window
https://bugs.launchpad.net/bugs/156705
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