Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!SUN.COM!robin
From: robin@SUN.COM (Robin Schaufler)
Newsgroups: comp.windows.news
Subject: Re: Help with double-click recognition.
Message-ID: <8910192039.AA00634@borogove.sun.com>
Date: 20 Oct 89 08:17:38 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 13

The difficulty with waiting for another event and then looking at the timestamp
is knowing how long to wait.

In NeWS, this problem is solved by sending oneself a shuttle event timestamped
in the future; since distribution of events is ordered by timestamp, if the
shuttle arrives before another down transition, then it is known to be a single
click.  If the down transition arrives before the shuttle, the client can
dequeue the shuttle so it never gets distributed.

X does not have this notion of timestamp ordering for all events.  I don't see
any way to implement this sort of shuttle interface.  If anyone else does,
please enlighten me.
						-- Robin