Path: utzoo!attcan!uunet!cbmvax!cbmehq!cbmger!peterk
From: peterk@cbmger.UUCP (Peter Kittel GERMANY)
Newsgroups: comp.sys.amiga
Subject: OS/2 PM vs. Amiga
Keywords: OS/2, PM
Message-ID: <282@cbmger.UUCP>
Date: 13 Jul 90 14:14:57 GMT
Organization: Commodore Bueromaschinen GmbH, West Germany
Lines: 29


A little citation of the well-reputated german magazine c't in an
introduction article to programming of OS/2 Presentation Manager:

   "PM tells the application to restore it's window contents after
   this is viewable again. ... This solution is reasonable. The
   effort to restore windows automatically by the PM itself would   
   be much too big on a multitasking system with several tasks
   running in parallel."

Remember the flags you may set when Opening an Amiga Intuition window?
On the Amiga, you can *CHOOSE* that Intuition does this job for you.
But you are not forced to do it this way, you also may do it yourself.
I think that's what is normally called flexibility.
And that's provided by an operating system only needing a small fraction
of memory compared to PM.

Another issue of flexibility: Under Amiga OS, you can have several screens
with different resolutions and color palettes simultaneously. I'm not
quite sure, but I fear that under PM you only have one screen and every
application has to share it. To those who know about it: What happens
if an application needs a different video mode or a different palette?
Is there a way under PM (please not by hacking and bypassing PM) to switch
to another display page? And if your video adaptor provides only one,
is the contents of the PM desktop saved and restored when switching
back to another task? 
-- 
Best regards, Dr. Peter Kittel      //     E-Mail to 
Commodore Frankfurt, Germany      \X/      rutgers!cbmvax!cbmger!peterk