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From: bochner@speed.harvard.EDU (Harry Bochner)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Buttons in SFGetFile dialog
Keywords: SFGetFile hook buttons custom
Message-ID: <2545@husc6.harvard.edu>
Date: 12 Apr 90 12:33:04 GMT
References: <1049@biar.UUCP>
Sender: news@husc6.harvard.edu
Reply-To: bochner@speed.harvard.EDU (Harry Bochner)
Distribution: usa
Organization: Aiken Computation Laboratory, Harvard University
Lines: 19

In article <1049@biar.UUCP>, trebor@biar.UUCP (Robert J Woodhead) writes:
|>Ok, so I need to add a custom button to the standard file dialog.
|>...  What I
|>need to do is be able to set a flag so that my main program knows the extra
|>button is pressed.  It would be lovely to be able to diddle the SFReply field
|>but no can do apparently.  Which means i have to alter a global from
within the
|>hook routine.  Which means futzing with the A5-WORLD.

I haven't done this in a long time, so maybe I'm out of date, but I don't think
you need to worry about A5. Packages aren't DA's (despite some similarities),
and as far as I know they run in the context of the application that
called them.
I did just what you're describing a few years ago, just writing into a global
w/o worrying about A5, and it worked fine. I _think_ that program of mine runs
under MultiFinder, but it's been a few years ...
                       
Harry Bochner
bochner@endor.harvard.edu