'Twas brillig, and Thomi Richards at 10/08/09 16:06 did gyre and gimble: > Hi, > > 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? See ck-list-sessions. Relies on the user's session being properly registered with console kit to work but that should be the case for other things anyway. HTHs Col -- Colin Guthrie gmane(at)colin.guthr.ie http://colin.guthr.ie/ Day Job: Tribalogic Limited [http://www.tribalogic.net/] Open Source: Mandriva Linux Contributor [http://www.mandriva.com/] PulseAudio Hacker [http://www.pulseaudio.org/] Trac Hacker [http://trac.edgewall.org/] _______________________________________________ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg