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John Abreau said:

> 1) How do I check, from the command line, if there's already an instance 
> of a given program running in the current X display, and
> 
> 2) How do I signal a window to deiconify and raise itself, from the
> command line?

Caveat: While I'm pretty good at configuring X to work the way I want
it to, I'm far from an expert on the protocol and features of the X
server, so I could easily be wrong...  You might try asking the Xperts
list at xfree86.org if no one else knows.

At any rate, AFAIK, the answer to both of these is that you don't,
unless the application in question specifically has support for such a
feature built in.  I don't believe there is a command-line method for
doing either operation to any generic application, though some WMs may
have built-in functions that might let you do it.  But you'd probably
need to get the window ID of the program, and the only way I know of
to do that is interactively (with xwininfo).

FWIW, if you like programming WMs, you could probably hack the
functionality in fairly easily...  But it would, of course, be
wm-specific.


- -- 
Derek Martin
Senior System Administrator
Mission Critical Linux
martin@MissionCriticalLinux.com

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