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       XSetCloseDownMode, XKillClient - control clients


       int XSetCloseDownMode(Display *display, int close_mode);

       int XKillClient(Display *display, XID resource);


                 Specifies the client close-down mode.  You can pass DestroyAll, RetainPermanent,
                 or RetainTemporary.

       display   Specifies the connection to the X server.

       resource  Specifies any resource associated with the client that you want  to  destroy  or


       The  XSetCloseDownMode  defines  what  will happen to the client's resources at connection
       close.  A connection starts in DestroyAll mode.  For information on what  happens  to  the
       client's resources when the close_mode argument is RetainPermanent or RetainTemporary, see
       section 2.6.

       XSetCloseDownMode can generate a BadValue error.

       The XKillClient function forces a close down of the client that created the resource if  a
       valid   resource   is   specified.   If  the  client  has  already  terminated  in  either
       RetainPermanent or RetainTemporary mode, all of the client's resources are destroyed.   If
       AllTemporary  is  specified,  the  resources  of  all  clients  that  have  terminated  in
       RetainTemporary are destroyed (see section 2.5).  This permits  implementation  of  window
       manager  facilities  that  aid  debugging.   A  client  can  set  its  close-down  mode to
       RetainTemporary.  If the client then crashes, its windows would  not  be  destroyed.   The
       programmer  can  then  inspect the application's window tree and use the window manager to
       destroy the zombie windows.

       XKillClient can generate a BadValue error.


       BadValue  Some numeric value falls outside the range of values accepted  by  the  request.
                 Unless  a specific range is specified for an argument, the full range defined by
                 the argument's type is accepted.  Any argument defined as a set of  alternatives
                 can generate this error.


       Xlib - C Language X Interface