Newsgroups: comp.windows.x.motif
Path: utzoo!utgpu!watserv1!sparky!andrew
From: andrew@sparky.uwaterloo.ca (Andrew MacLean)
Subject: WM closing sub-top-level windows
Message-ID: <1991Jun21.181233.2669@watserv1.waterloo.edu>
Originator: andrew@sparky
Sender: news@watserv1.waterloo.edu
Organization: University of Waterloo
Distribution: na
Date: Fri, 21 Jun 1991 18:12:33 GMT
Lines: 54

I am creating an X11 R3 client using the motif toolkit. This client
will contain many top level widgets, each being independent of the 
other with the one main window. (ie:


                      ----------
                      |        |
                      | main   |
                      | window |
          /-----------|        |-----------\
          |           ----------            |
          |                |                |
          |                |                |
          |                |                |
          |                |                |
     ----------       ----------         ----------
     |        |       |        |         |        |
     | sub    |       | sub    |         | sub    |
     | window |       | window |         | window |
     |        |       |        |         |        |
     ----------       ----------         ----------


The problem that I am having is that since each is its own window,
they each can be killed by the window manager using the pulldown
menu option 'Quit window'. (Note. I am using the olwm, and am also
therefore using the Open Look server on a Sparc 1+.)

Is there any way (in R3) to have the window manager tell my main program
that one of the sub-top-level windows has been closed? If there isn't,
is there a way to remove the quit option from the window frame surrounding
the sub-top-level window?

Just to inform you of the options I have tried, I have tried the following:

	XtAddEventHandler(widget, StructureNotifyMask, False, destroy_proc, NULL);

I tried this, because it apparently traps Destroy_Window events. Unfortunately
it did not inform my procedure of the destroy request.

Next I tried.
	XmAddProtocolCallback(widget, WM_DELETE_WINDOW, destroy_proc, NULL);

yet after close examination of the manual, I reaslized that this is an
option implemented in R4.

Any help would be greatly appreciated.
Thanks in advance.
andrew
-- 
Andrew MacLean
Civil Engineering
University of Waterloo
andrew@sparky.uwaterloo.ca