Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!cs.utexas.edu!uunet!airgun!keith
From: keith@airgun.wg.waii.com (Keith M. Fernandez)
Newsgroups: comp.windows.x
Subject: inter-client communication
Keywords: rootwindow, eventhandler, widget
Message-ID: <144@airgun.wg.waii.com>
Date: 12 Feb 90 20:24:18 GMT
Organization: Western Geophysical, Houston
Lines: 22


     I am having problems implementing inter-client communication using X 

properties. I have 2 X clients running wherein application 1 is trying to

receive a property supplied by application 2. Until now, properties were

hung from the root window and everything was fine. We would like to implement

an event handler so that applications can be driven by changes in properties.

The problem is this: XtAddEventHandler must be supplied a widget in which

specified events are to be trapped and we have no widget for the root 

window. Furthermore, we can't find a way of supplying 2 or more applications

with a common widget for property exchange. I've tried passing window id's

(using XtWindowToWidget on the receiving end) and widget structures through 

the root window, but have met with little success. Can anybody offer some help?