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From: daniel@mirsa.inria.fr (Daniel Dardailler)
Newsgroups: comp.windows.x
Subject: save_under & backing_store relations?
Message-ID: <478@mirsa.inria.fr>
Date: 2 Jan 90 14:23:35 GMT
Reply-To: daniel@mirsa.inria.fr (Daniel Dardailler)
Organization: Bull Research Center. Sophia Antipolis. France
Lines: 29

From the Red Bible:

"If save-under is True, the X server is advised that, when this window
is mapped, saving the contents of windows it obscures would be beneficial."


It seems that the good interpretation is:

 ... saving the *entire* contents of the windows it obscures ...
 [setting all the obscured windows' backing-store flags temporarily ON]

and the bad interpretation was:

 ... saving the *partial* contents of the windows it obscures ...
 [saving the part of the screen under the save-under window]

My question is: Why?

Since my application requires me to create huge windows (together with
clip and coordinate translation features), the only way I can be sure
that X doesn't gobble up memory is to use an X server that has been
started with the -bs option...


   Daniel Dardailler                   |      Email : daniel@mirsa.inria.fr  
   BULL  Centre de Sophia Antipolis    |      Phone : (33) 93 65 77 71       
         2004, Route des Lucioles      |      Telex :      97 00 50 F        
         06565 Valbonne CEDEX  France  |      Fax   : (33) 93 65 77 66      
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