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From: tomas@apple.UUCP
Newsgroups: net.micro.mac
Subject: Re: Request for help with Standard File
Message-ID: <141@apple.UUCP>
Date: Wed, 20-Aug-86 13:08:37 EDT
Article-I.D.: apple.141
Posted: Wed Aug 20 13:08:37 1986
Date-Received: Sat, 23-Aug-86 22:00:17 EDT
References: <15332@ucbvax.BERKELEY.EDU>
Reply-To: tomas@apple.UUCP (Tom Taylor)
Organization: Apple Computer Inc., Cupertino, USA
Lines: 37

In article <15332@ucbvax.BERKELEY.EDU> carlton@ernie.Berkeley.EDU (Mike Carlton) writes:
>
>I'm using SFGetFile, (actually SFPGetFile, which is the same except that I'm
>giving it a custom dialog), and I want to present one of two groups of files,
>based on which of a pair of radio buttons is active.  What I've done is told
>SFGetFile to display all types of files, and then I use the file filter 
>procedure to filter out one of the two groups after it reads the status of
>the radio buttons.  
>
>The problem comes when the user hits the other radio button: I want the file 
>list to display a different group of files now.  So, I need SFGetFile to read 
>the volume info again and call my file filter for each file.  These are the 
>same actions as if you hit the Drive button, but it must apply to the current
>disk.
>
>Any ideas on how to do this?  I've tried posting a disk event for the drive
>holding the current disk (thinking to fool SF by telling it the disk has just
>been inserted), but it either ejects the disk or ignores the event.  I've also
>tried decrementing the global value SFSaveDisk (which contains the current disk
>number) and telling SF that the Drive button was hit, but it ignores the value
>and just writes a new value after cycling to the next drive.
>
>Just to make things more interesting, it needs to be done in a "safe" way, e.g.
>no jumping into the code of Pack3, as there are already at least 2 versions of
>Standard File and there may be more.
>
>Thanks in advance for any ideas.
>
>Mike Carlton
>
>"Bugs Mr. Rico, zillions of them"  -- Starship Trooper

To make SFGetFile or SFPGetFile redraw the whole list simply have the
Dialog Hook routine return 101.  Macintosh Technical Note #47 describes your
exact situation and even has the source code to an example.

Tom Taylor