REF XClientConnections                               A.Schoter, Jun 1991
                                        Revised: Adrian Howard, Jun 1993

        COPYRIGHT University of Sussex 1993. All Rights Reserved.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
<<<<<<<<<<<<<<<<<<<<<                             >>>>>>>>>>>>>>>>>>>>>>
<<<<<<<<<<<<<<<<<<<<<  KILLING XLIB CLIENTS AND   >>>>>>>>>>>>>>>>>>>>>>
<<<<<<<<<<<<<<<<<<<<<  SETTING THEIR CLOSE DOWN   >>>>>>>>>>>>>>>>>>>>>>
<<<<<<<<<<<<<<<<<<<<<            MODE             >>>>>>>>>>>>>>>>>>>>>>
<<<<<<<<<<<<<<<<<<<<<                             >>>>>>>>>>>>>>>>>>>>>>
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

The following  details the  Xlib functions  which allow  you to  destroy
clients, and decide what  happens to any resources  they hold when  they
die.

         CONTENTS - (Use <ENTER> g to access required sections)

  1   LIB XClientConnections
      1.1   Constants
      1.2   Procedures



-------------------------
1  LIB XClientConnections
-------------------------

To load LIB * XClientConnections do:

        uses xlib, XClientConnections;

The procedures supplied by  this library are  direct equivalents of  the
Xlib C functions. For  information on the C  functions see section  7.72
'Killing Clients' in:

                      Xlib - C Language X Interface
                        MIT X Consortium Standard
                         X Version 11, Release 4

        Copyright (C) 1985, 1986, 1987, 1988, 1989 Massachusetts
        Institute of Technology,  Cambridge, Massachusetts,  and
        Digital Equipment Corporation, Maynard, Massachusetts.



1.1  Constants
--------------
The following constants are defined by LIB * XClientConnections.


AllTemporary -> 0                                       [constant macro]
        See * XKillClient for details.


DestroyAll -> 0                                         [constant macro]
        Used in * XSetCloseDownMode to specify what happens to a clients
        resources when it's  server connection  is closed.  This is  the
        default close-down  mode for  a client  if XSetCloseDownMode  is
        never called.  When the  X  servers connection  to a  client  is
        closed and  it's  close-down mode  is  DestroyAll then  all  the
        clients resources are destroyed. Compare with  * RetainPermanent
        and * RetainTemporary.


RetainPermanent -> 1                                    [constant macro]
RetainTemporary -> 2                                    [constant macro]
        These constants are possible close-down  modes for a client,  as
        specified by * XSetCloseDownMode. If either of these  close-down
        modes is specified the clients resources are kept by the  server
        after the clients  server connection has  been closed. They  are
        kept  permanently,   or   temporarily   depending   on   whether
        RetainPermanent or  RetainTemporary is  used. See  * XKillClient
        for more information. Compare with * DestroyAll.

        When the last connection  to the X  server closes any  resources
        that   were    retained   via    setting   RetainPermanent    or
        RetainTemporary close-down modes are destroyed.



1.2  Procedures
---------------
The following procedures are defined by LIB * XClientConnections.


XSetCloseDownMode(displayptr, close_mode)                    [procedure]
        This procedure defines what happens to a clients resources  when
        it's display  connection (specified  by displayptr)  is  closed.
        close_mode should be either * DestroyAll, * RetainPermanent,  or
        * RetainTemporary.

        DestroyAll is the default  close down mode if  XSetCloseDownMode
        is never called.

        XSetCloseDownMode can generate a "BadValue" error if it is given
        incorrect arguments


XKillClient(displayptr, xid)                                 [procedure]
        XKillClient  causes  the  client   that  created  the   resource
        specified by the XID xid to be closed down.

        If the client has already be closed down with  * RetainPermanent
        or * RetainTemporary set then all  of the clients resources  are
        destroyed.

        xid also can  be the  special constant  * AllTemporary. If  this
        argument is supplied then all the resources of clients that have
        been closed  down in  RetainTemporary  mode are  destroyed  (see
        * XCloseDisplay.)

        This  facility  allows  the  implementation  of  window  manager
        features which can aid debugging. A buggy client program can set
        its close-down mode to RetainTemporary so that, when it crashes,
        its windows are not destroyed.  The programmer can then  inspect
        the application's  window tree  and use  the window  manager  to
        destroy the zombie windows when they're finished.

        XKillClient can  generate  a "BadValue"  error  if it  is  given
        incorrect arguments




--- C.x/x/pop/ref/XClientConnections
--- Copyright University of Sussex 1991. All rights reserved.