Path: utzoo!attcan!uunet!husc6!bloom-beacon!EXPO.LCS.MIT.EDU!rws
From: rws@EXPO.LCS.MIT.EDU (Bob Scheifler)
Newsgroups: comp.windows.x
Subject: Re: Help!
Message-ID: <8901282206.AA00375@EXPIRE.LCS.MIT.EDU>
Date: 28 Jan 89 22:06:41 GMT
References: <8901282046.AA06866@sparky>
Sender: daemon@bloom-beacon.MIT.EDU
Organization: The Internet
Lines: 10


    Note: This *won't* work if the window in question has a backing-store of
    type Always, and the server has enough resources to retain the window.
    With such a window, you should wait for a MapNotify event before drawing.

WRONG!  Even with such a window, you get an Expose event, and you should
drive repaint based on the Expose event.

(Perhaps you are confused by bugs in the unofficial backing store code that
people used with R2.)