Newsgroups: comp.windows.x
Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!think.com!zaphod.mps.ohio-state.edu!wuarchive!uunet!news.uu.net!nss1!mrm
From: mrm@nss1.com (Michael R. Miller)
Subject: Re: save_under quiz for xperts!
Organization: XZaphod of Rockville, MD
Date: Wed, 22 May 1991 09:33:00 GMT
Message-ID: <1991May22.093300.6097@nss1.com>
Summary: save_unders
Send-Reply-To: uunet!xzaphod!michael
References: <9105172046.AA01600@cas.org> <1991May18.155243.26271@alphalpha.com>

In article <1991May18.155243.26271@alphalpha.com> nazgul@alphalpha.com (Kee Hinckley) writes:
>In article <9105172046.AA01600@cas.org> jdb26@LOCAL.UUCP writes:
>>If you have save_under specified for a popup window and the
>>contents of the window under the popup changes, what is the
>>correct behavior for a server when the popup is unmapped?

Having spent some time inside the server, when a window is only partially
exposed and drawing operations would be clipped while save unders are active,
the server (should) draw the unexposed graphics op on the pixmap it is
keeping to accomplish save unders.  I obtained this information by writing
and debugging servers for the X11R4 source tree: I'm not able to comment
on other versions such as X11R5 as yet.

Michael R. Miller
uunet!xzaphod!michael