Xref: utzoo comp.sys.mac.programmer:5363 comp.sys.mac:29537
Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!husc6!bbn!apple!keith
From: keith@Apple.COM (Keith Rollin)
Newsgroups: comp.sys.mac.programmer,comp.sys.mac
Subject: Re: Need some MF help
Keywords: MultiFinder
Message-ID: <28399@apple.Apple.COM>
Date: 5 Apr 89 02:08:48 GMT
References: <1562@neoucom.UUCP>
Organization: Apple Computer Inc, Cupertino, CA
Lines: 37

In article <1562@neoucom.UUCP> sam@neoucom.UUCP (Scott A. Mason) writes:
>
>Firstly,  what is the standard way of checking for MultiFinder
>existence?

There currently is no way to determine if MultiFinder is running, but that's
mostly because we haven't seen a need for this. In DTS, we've found
that almost all of the people who ask this questions really want to find out
if WaitNextEvent or the MFMemory calls are implemented. In those cases, there
are documented methods for finding this out. Just check out Technotes #158,
177, 180, and 205 (the answer's in one of them).

If you do have a valid reason for needing to know if MultiFinder is running,
please let me know! So far it's been a battle, with developers saying "We need
to know!" and Apple saying "No you don't!". Finding a legitimate reason for
knowing would put an end to this contest.

So far, there is only one valid reason that I know about, and this will be
resolved with a future release of the System Disk. It revolves around sub-
launching and whether or not you need to save open documents and configura-
tions. If you have a reason other than this, again, please let me know!

>Lastly,  what is the standard way of keeping track of the windows,
>so that it can be redrawn or updated after a MF switch?
>(I hate it when upon returning from the Finder in MF, I find my
> window has been erased by all the folders)

This shouldn't be happening. If the Finder is obscuring your windows, and your
application is brought to front, you will get an update event (as long as your
event mask allows them).

------------------------------------------------------------------------------
Keith Rollin  ---  Apple Computer, Inc.  ---  Developer Technical Support
INTERNET: keith@apple.com
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"Argue for your Apple, and sure enough, it's yours" - Keith Rollin, Contusions