Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!oliveb!intelca!mipos3!pinkas
From: pinkas@hobbit.intel.com (Israel Pinkas ~)
Newsgroups: comp.windows.x
Subject: Reparenting WM's
Message-ID: <PINKAS.89Feb6133558@hobbit.intel.com>
Date: 6 Feb 89 21:35:58 GMT
Sender: news@mipos3.intel.com
Distribution: comp
Organization: Corporate CAD, INTeL Corporation, Santa Clara, CA
Lines: 42


I am porting an application that currently uses serial graphics terminals
for graphics.  Occasionally, the program needs to display a large quantity
of text, and switches the terminal to text mode (and hides the graphics).

In porting this application, the power that be decided that the mechanism
we would use would be to raise the xterm from which the application was
invoked and display the text.  (We use the WINDOWID environment variable to
determine the correct xterm.)

The calling sequence is:

	XSelectInput(disp, xterm_win, ExposureMask | StructureNotifyMask);
	XRaiseWindow(disp, xterm_win);
	do {
	    XWindowEvent(disp, xterm_win, 
			 ExposureMask | StructureNotifyMask, &rep);
	} while ((rep.type != ConfigureNotify) ||
		 (rep.type == Expose && rep.xexpose.count == 0));

	XSelectInput(disp, xterm_win, NoEventMask);

This works fine when there is no window manager, or with uwm.  However,
every other window manager that I have (dxwm, twm) reparents the xterm.  As
a result, the XRaiseWindow() has no affect on the xterm window, and I hang
in the loop.

Is there any way to accomplish what I am trying to do.  This port is fairly
short lived, so having the application create and manage it's text window
is not feasible.  (We use the same code for an escape to shell, so we
cannot accomplish everything by having a window that we write text to.)

-Israel
--
--------------------------------------
Disclaimer: The above are my personal opinions, and in no way represent
the opinions of Intel Corporation.  In no way should the above be taken
to be a statement of Intel.

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