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From: markus@hcmv2.ti.com (Markus Richardson)
Newsgroups: comp.windows.x.motif
Subject: Re: Changing the pointer in ALL windows
Message-ID: <markus.673042732@hcmv2>
Date: 30 Apr 91 20:18:52 GMT
References: <1991Apr28.014058.16034@engin.umich.edu>
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Organization: Texas Instruments Inc, VLSI Design Lab, Dallas, TX
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theslim@engin.umich.edu (Eric Michael Slimko) writes:

>I am writing a motif application which has many top-level windows.
>I would like to have the pointer change to a watch in all those windows
>to notify the user to wait.  Unfotunately, it looks to me like you have
>to do a XDefineCursor using the window ID for EACH of the popup windows
>to get that to happen.  Is there anyway around this?  I tried using the
>toplevel widget returned from XtInitialize, but that only changes the
>pointer for that window.  

I have been fighting with this one too!

I chose to create an InputOnly window with its pointer defined as a
stopwatch.  By mapping the window, all user-generated input events 
can be safely ignored until the processing is completed upon which the
window is unmapped.

But I get the same behavior as Eric is having :-(  I have even tried
to force it to be the top window in the stacking order as well as setting
the override_redirect window resource to True.  Both attempts made no
difference.  Here is [the perintent portions of] my code:


To initialize the shells and InputOnly window and cursor:

	...

	[ the first top level shell created here ]
	...

	XSetWindowAttributes attr;
	attr.override_redirect = True;
	Dimension x, y, width, height;
	argcnt = 0;
	XtSetArg(args[argcnt], XmNx, &x); argcnt++;
	XtSetArg(args[argcnt], XmNy, &y); argcnt++;
	XtSetArg(args[argcnt], XmNwidth, &width); argcnt++;
	XtSetArg(args[argcnt], XmNheight, &height); argcnt++;
	XtGetValues(Top_app_shell, args, argcnt);
	Wait_window = XCreateWindow(Main_display, Main_window, x, y, 
		width, height, 0, 0, InputOnly, 
		DefaultVisualOfScreen(Main_screen),
		CWOverrideRedirect, &attr);

	Wait_cursor = XCreateFontCursor(Main_display, XC_watch);
	XDefineCursor(Main_display, Wait_window, Wait_cursor);

	...

	[ other top level application shells created here ]
	...

And when extended processing is about to occur:

	XMapRaised(Main_display, Wait_window);
	XmUpdateDisplay(Top_widget);

And when processing is completed:

	XUnmapWindow(Main_display, Wait_window);


It works fine when the mouse pointer is in the "Wait_window", but
the pointer changes back when in other top level shells.  Are the
other shell windows overriding the XMapRaised call?  I thought it might
be mwm getting in the way, so I ran it with no wm but no difference.

Thanks for any pointers :-)

In case it matters, I'm running Motif v1.1.1

--
Markus R.  (markus@ti.com)

"If people built houses the way we write programs, the first woodpecker 
 would wipe out civilization"  _The Cuckoo's Egg_ by Cliff Stoll