Path: utzoo!attcan!uunet!husc6!bloom-beacon!EXPO.LCS.MIT.EDU!kit
From: kit@EXPO.LCS.MIT.EDU (Chris D. Peterson)
Newsgroups: comp.windows.x
Subject: Re: help with callbacks
Message-ID: <8904181833.AA19748@expo.lcs.mit.edu>
Date: 18 Apr 89 18:33:29 GMT
References: <4006@ece-csc.UUCP>
Sender: daemon@bloom-beacon.MIT.EDU
Organization: The Internet
Lines: 15


>  I want to have a single callback for all of the windows.
> My problem, after I have selected the window from the menu, how can I pass
> that window id to the callback function.

XtAddCallback() takes a generic pointer that is client specified data.
This can point to one item, or a structure of items that are specific
to this particular callback.  This data is then passed to the Callback 
routine that is called when your menu item is selected.  There are
many examples of this, one is xman.  Xman is on the core R3 distribution
in "clients/xman/*".


                                                Chris D. Peterson
                                                MIT X Consortium