Re: Identifying disks/volumes by a unique ID?
Re: Identifying disks/volumes by a unique ID?
- Subject: Re: Identifying disks/volumes by a unique ID?
- From: Ken Thomases <email@hidden>
- Date: Wed, 25 Mar 2009 02:03:38 -0500
On Mar 24, 2009, at 6:05 AM, Oleg Krupnov wrote:
My app needs to disable some functions when a disk (volume) is
unmounted, and then enable the functions back again if the *same*
volume is mounted back again.
Is there a kind of unique IDs on disks and volumes I could use for
identifying them?
Yes. Check out DADiskCopyDescription. It returns a dictionary which
may include keys kDADiskDescriptionVolumeUUIDKey and
kDADiskDescriptionMediaUUIDKey, one of which will probably serve your
needs.
A good resource is the FSMegaInfo sample code <http://developer.apple.com/samplecode/FSMegaInfo/
>. It's a command-line tool which can call just about every file-
system-querying API in Mac OS X.
Cheers,
Ken
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