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Article #3276

WindowServer connections

#3276
From: Christopher D Audley
Date: Tue, 10 Nov 1992 01:03
33 lines
1943 bytes
Its been asked many times how one opens a connection to the WindowServer
when no one is logged in ( by myself at least three times ).  Everytime
I get no useful answer, just a lot of questions of the form "Why would you
want to do that?"

In the hopes that someone will find my cause worthy and answer my question,
here goes:

	I would like to connect a UPS to my NeXTstation that has a
	serial cable through which it notifies the computer when
	the power supply has been interupted.  On the computer I
	would like to have a daemon running which monitors the serial
	port; when the power goes out it will sound an alarm and
	present a count-down timer approximating when power will be
	lost.  This program will need to be able to inform me of a
	problem even when I'm not logged in ( so I can do a clean
	shutdown at the very least ).  In order to do that, I need
	to open a window when no one is logged in.  I do not care
	if I can't use the AppKit, I think I can manage a simple
	timer in PostScript myself.  Having the daemon just assume
	it can shut the computer down if no one is logged in at the
	console is not acceptable, people may have telneted to the
	machine ( and besides, I don't know how to do that either ).

Please, if you know how to do this, tell me.

Chris

-- 
Christopher D. Audley
Elec & Comp Engineering
The Johns Hopkins University
Internet: audley@jhunix.hcf.jhu.edu
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Message-ID: <1992Nov10.010325.4556@jhunix.hcf.jhu.edu>
Path: arc1-ca.pugleaf.net!sparky!uunet!noc.near.net!hri.com!spool.mu.edu!uwm.edu!cs.utexas.edu!zaphod.mps.ohio-state.edu!rphroy!caen!destroyer!gumby!yale!yale.edu!jvnc.net!darwin.sura.net!jhunix.hcf.jhu.edu!audley

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Path: arc1-ca.pugleaf.net!sparky!uunet!noc.near.net!hri.com!spool.mu.edu!uwm.edu!cs.utexas.edu!zaphod.mps.ohio-state.edu!rphroy!caen!destroyer!gumby!yale!yale.edu!jvnc.net!darwin.sura.net!jhunix.hcf.jhu.edu!audley
From: audley@jhunix.hcf.jhu.edu (Christopher D Audley)
Newsgroups: comp.sys.next.misc,comp.sys.next.programmer
Subject: WindowServer connections
Message-ID: <1992Nov10.010325.4556@jhunix.hcf.jhu.edu>
Date: 10 Nov 92 01:03:25 GMT
Distribution: na
Organization: HAC - Johns Hopkins University, Baltimore
Lines: 33