how to list active X11 sessions on a local machine?
gmane at colin.guthr.ie
Mon Aug 10 08:40:43 PDT 2009
'Twas brillig, and Thomi Richards at 10/08/09 16:06 did gyre and gimble:
> I'm trying to write an application that monitors the active sessions
> an X11 server is handling. Essentially I need to get a list of display
> names, and then connect to them using XOpenDisplay. Essentially I need
> to monitor all active X11 sessions and do things like take snapshots
> of application windows running within those sessions.
> So far I haven't seen any API to do this - all the XLib API functions
> I can see require that you have already connected to the display. I
> have come up with a few hacky methods. The first is to scan the X
> server lock files in /tmp/, which gives me the process Id, then to
> check the command line args of the process to determine the display
> name (I realise that this method has several obvious flaws). Another
> method is to look in the utmp records, but then I miss the entry for
> the X session that runs the graphical login screens (such as KDM).
> Can anyone suggest a more suitable method of monitoring active X11 sessions?
Does console-kit supply the necessary info here?
Relies on the user's session being properly registered with console kit
to work but that should be the case for other things anyway.
Tribalogic Limited [http://www.tribalogic.net/]
Mandriva Linux Contributor [http://www.mandriva.com/]
PulseAudio Hacker [http://www.pulseaudio.org/]
Trac Hacker [http://trac.edgewall.org/]
More information about the xorg