Path: utzoo!yunexus!hydroesm!jtsv16!torsqnt!news-server.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!zaphod.mps.ohio-state.edu!usc!snorkelwacker!bloom-beacon!eng.sun.COM!smarks
From: smarks@eng.sun.COM (Stu  t Marks)
Newsgroups: comp.windows.x
Subject: Re: xnews problems with input
Message-ID: <9005292320.AA10101@trantor.Eng.Sun.COM>
Date: 29 May 90 23:20:55 GMT
Article-I.D.: trantor.9005292320.AA10101
References: <1990May24.055211.19052@cs.uoregon.edu>
Sender: daemon@athena.mit.edu (Mr Background)
Organization: The Internet
Lines: 42


| The department here runs 'xnews' (version 1.0.1) on the SparcStations 
| that we have here.  The problem is that when I take the code that I
| wrote for X11R3 to xnews it doesn't recieve input from the keyboard.
| 
| As an experiment, I called XSetInputFocus() and received input
| for as long as the pointer remained in the window.  (before the &@$*
| window manager took control again).
| 
| Anyway how has Sun muddled things up, and what do I have to do
| to recieve input from the keyboard?

Sorry, this isn't because of any "muddling up" by Sun.  I suspect that your
program isn't supplying the proper "hints" that will allow it to receive
the input focus.  These hints are defined by the ICCCM (an X Consortium
Standard), and the window manager in xnews (really, OpenWindows) will only
assign the focus to a window if it has supplied the proper hints.

Here's a code fragment that you can patch into your program so that it
will create the proper input focus hint.

    #include <X11/Xlib.h>
    #include <X11/Xutil.h>
    ...
    Display *dpy;
    Window win;
    XWMHints wmhints;
    ...
    dpy = XOpenDisplay(...);
    ...
    win = XCreateSimpleWindow(...);
    ...
    wmhints.flags = InputHint;
    wmhints.input = True;
    XSetWMHints(dpy, win, &wmhints);
    XMapWindow(dpy, win);

s'marks

Stuart W. Marks			ARPA: smarks@eng.sun.com
Window Systems Group		UUCP: sun!smarks
Sun Microsystems, Inc.