Path: utzoo!attcan!uunet!seismo!dimacs.rutgers.edu!mips!sgi!shinobu!odin!sgihub!dragon!eukanuba.wpd.sgi.com!mikey
From: mikey@eukanuba.wpd.sgi.com (Mike Yang)
Newsgroups: comp.windows.x.motif
Subject: Re: XmNmapCallback???
Message-ID: <1990Oct23.195354.1978@relay.wpd.sgi.com>
Date: 23 Oct 90 19:53:54 GMT
References: <1990Oct22.183455.27968@wrl.dec.com>
Sender: news@relay.wpd.sgi.com ( CNews Account )
Reply-To: mikey@sgi.com
Organization: Silicon Graphics, Inc.
Lines: 19

In article <1990Oct22.183455.27968@wrl.dec.com>, pjs@basalt.pa.dec.com (Philip Schneider) writes:
|>     I've got a Motif application that uses a drawing area widget.  I'd like
|> to have a callback routine called when the window associated with that
|> widget is mapped.  Unfortunately, I seem unable to accomplish this -- the
|> attempt to specify a map callback routine is met with an error message :
|> 
|> 	"Warning: Cannot find callback list in XtAddCallbacks"
|> 
|>     Is there any way to get a callback when a widget's window is mapped?
|> Any help would be appreciated. . . :-)

XmNmapCallback is only supported in some of the widgets, like
XmBulletinBoard.  But you can always use XtAppAddEventHandler with
StructureNotifyMask and check if the event which triggered the handler
is MapNotify.

-----------------------------------------------------------------------
                 Mike Yang        Silicon Graphics, Inc.
               mikey@sgi.com           415/335-1786