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From: gjw@spurr.wr.usgs.GOV (Gregory J. Woodhouse)
Newsgroups: comp.windows.x
Subject: WM_SAVE_YOURSELF (again)
Message-ID: <9101312333.AA06556@spurr.wr.usgs.gov>
Date: 31 Jan 91 23:33:10 GMT
Sender: daemon@athena.mit.edu (Mr Background)
Organization: The Internet
Lines: 20

Assume an application supports both the WM_DELETE and WM_SAVE_YOURSELF proto-
cols.  Under what normal circumstgances will olwm send a save yourself request
to the application?  What about mwm?  (I expect my current project to be
used in both environments.)  No doubt this was covered some how in the recent
discussion of this protocol,  but (excuse alert!) I haven't really been able
to read my mail carefully enough to tell these past few days.

Now for the really interesting question: Process A knows process B's pid,
and process B supports the save yourself protocol.  Can process A kill
process B and invoke this protocol?  Can process B arrange for this to
happen?

Ultimately, I want process A to be able to kill process B and then restart it
at a later time, but in the state in which it exited.  What I can do is have
it write a command on the root window (to what I call _XP_COMMAND), but I'd
think this all ought to involve the save yourself protocol somehow.

Thanks!
Gregory Woodhouse
gjw@ags.wr..usgs.gov