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Path: utzoo!mnetor!seismo!rutgers!cbmvax!andy
From: andy@cbmvax.cbm.UUCP (Andy Finkel)
Newsgroups: comp.sys.amiga
Subject: Re: Amiga Wish List
Message-ID: <2034@cbmvax.cbmvax.cbm.UUCP>
Date: Tue, 23-Jun-87 10:21:55 EDT
Article-I.D.: cbmvax.2034
Posted: Tue Jun 23 10:21:55 1987
Date-Received: Thu, 25-Jun-87 03:59:23 EDT
References: <8706120543.AA16187@cory.Berkeley.EDU> <1601@stb.UUCP>
Reply-To: andy@cbmvax.UUCP (Andy Finkel)
Organization: Commodore Technology, West Chester, PA
Lines: 47

In article <1601@stb.UUCP> michael@stb.UUCP (Michael) writes:
>>	Setting the pr_Window field in a process's process structure causes
>>DOS to return an error immediately without asking for user assistance.
>>
>>				-Matt
>
>False. The printer driver will still put up "Printer problems",
>the disk device will still put up "I/o error", the disk validator will 
>still put up "Use disk doctor", etc.
>
>The point is, that only stops YOUR task's messages, not messages from tasks
>that you call.

Actually, the printer.device, since it runs as a task, rather than a process,
strictly speaking has no pr_WindowPtr.  So it uses the one from the calling
task (ie, you).  Printer requests are stopped by setting your pr_WindowPtr
to -1.

You're right about AmigaDOS, though.  Any error message it can't figure
out who it belongs to, it will put up a requester.

There are two ways around this; both have their side effects.

One could FindTask the file system process and change its pr_WindowPtr,
(I haven't tried this, so really don't know just how horrible it might be.
 Maybe it will work perfectly)

 The other is to do a SetFunction on AutoRequest, and divert all
 requesters to the device of your choice (ie console, or the bit bucket).

 I was going to write the later and post it, but I'm pressed for time
 right now...sorry :-(

>-- 
>: Michael Gersten		seismo!scgvaxd!stb!michael
>: Ground floor, comming up -- 1-3-7

		andy finkel
-- 
andy finkel		{ihnp4|seismo|allegra}!cbmvax!andy 
Commodore-Amiga, Inc.

"The goal of Computer Science is to build something that will last at
least until we've finished building it."

Any expressed opinions are mine; but feel free to share.
I disclaim all responsibilities, all shapes, all sizes, all colors.