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From: johnston@oscar.ccm.udel.edu (Bill Johnston)
Newsgroups: comp.sys.mac.hypercard
Subject: Re: How can I have an HC stack check if it's running from a hard disk?
Message-ID: <50679@nigel.ee.udel.edu>
Date: 14 Apr 91 07:00:57 GMT
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In article <1991Apr13.181917.20797@spool.cs.wisc.edu>, elliott@veronica.cs.wisc.edu (James Elliott) writes...
>I have a HyperCard stack I'm creating as an entry for a contest, which
>makes intensive use of sampled sounds. I would like to have it test to
>see if it is being run from a floppy ...

There must be a better way, but ... (using two XFCN's from the SupportTools
eXternals stack):

CurrAppPath returns the full path name of the currently running HyperCard.
(For example, "HD40:HyperStuff:HyperCard".)  Strip away the stuff after the 
first colon and put the rest into volumeName.  Put SCSINameToID(volumeName)
into "temp":  if volumeName isn't a SCSI drive, temp will contain "volumeName
is not a SCSI drive" and you'll know that you are working from a floppy.

-- Bill (johnston@oscar.ccm.udel.edu)