Path: utzoo!attcan!uunet!mcsun!hp4nl!nikhefk!werner
From: werner@nikhefk.UUCP (Werner Vogels)
Newsgroups: comp.windows.x
Subject: some ICCCM questions
Keywords: ICCM, windowmanagers
Message-ID: <635@nikhefk.UUCP>
Date: 20 Mar 90 21:09:28 GMT
Organization: Nikhef-K, Amsterdam (the Netherlands).
Lines: 28



A few ICCCM questions from my students:

1)  ICCCM suggests that WM_TRANSIENT_FOR windows are children of the root.
    We encountered this suggestion several times in other places but never 
    a statement that they must be children of the rootwindow. What are the
    propeties of this kind of window and what are the requirments for handling
    them?

2)  According to ICCCM for each window only once a SubstructureRedirect or 
    a ResizeRedirect can be asked and only on windows that are 
    owned. What means owning a window in this context and what consequences
    are there for the windowmanager ?

3)  ICCCM suggests that a client should receive all button and keyevents on
    the window from him or her that has the focus even if the windowmanager
    has placed a grab on some keys or buttons. Does this mean that the 
    windowmanager has to send all events further to the client or only those
    where no grab exists for ?


Werner H.P. Vogels

Software Expertise Centrum                      
Haagse Hogeschool, Intersector Informatica     tel: +31 70 618419
Louis Couperusplein 2-19, 2514 HP Den Haag     E-mail: werner@nikhefk.nikhef.nl
The Netherlands                                     or werner@hhinsi.uucp