Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!bloom-beacon!bu-cs!purdue!haven!uvaarpa!mcnc!ece-csc!hwa
From: hwa@ece-csc.UUCP (George Hwa)
Newsgroups: comp.windows.x
Subject: help with callbacks
Summary: passing parameters to a callback
Keywords: callbacks, Athena widgets.
Message-ID: <4006@ece-csc.UUCP>
Date: 10 Apr 89 20:45:24 GMT
Reply-To: hwa@ece-csc.UUCP (Russ Cook)
Distribution: usa
Organization: North Carolina State University, Raleigh, NC
Lines: 17


	I am working on an application using the X Toolkit and the Athena
Widgets.  I need a little help with passing parameters to a callback function.
My application uses multiple windows.  I have a single main menu that
controls all the windows.  Several of my menu operations perform certain
operations on one of the windows.  I use a pop up menu to choose the window
I want to use.  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.

	Any help would be greatly appreciated.

	Thanks in advance.

	Russ Cook
	NC State University
	hwa@ece-csc.ncsu.edu