Thanks Matt - at this stage I would be happy to be able to just identify
that the file is being served up by a netware server or similar. If we
can identify that situation then we can just ignore the datetime value
which will do for now.
Cheers,
Phil.
Matt Comb wrote:
Hi Phil.
I spent ages some years back trying to sort out something very similar.
I can't entirely remember the details, but Fat, Fat32 and NTFS store
datetime information differently from each other.(Others may know the
exact details). Primarily I believe the difference between these
windows formats is whether or not the locale / regional settings are
applied. From memory NTFS stores according to GMT while FAT systems
store according to regional settings. For example, try looking at a
files creation date and time, and then turn on daylight savings
settings and watch the date and time change, so frustrating if you are
trying to synchronise files as we were. Windows automatically alters
the date/time and all of a sudden your date time is out.
There is a call to tell you the operating system of a volume, but
there are some difficulties, for exmaple:
Machine 1 (FAT) accessing file on Machine 1 (FAT)
Machine 1 (FAT) accessing file on Machine 2 (NTFS)
Machine 2 (NTFS) accessing file on Machine 2 (NTFS)
could all produce different values.
If you want I can dig out some code for you that is supposed to strip
off the locale information on those FAT volumes but the problem is
when you access from Machine 1 to Machine 2, you don't know what
locale information is being applied on the second machine. So you can
never really cover all bases.
Depending on what you are attempting to do if you have control of all
the files that go in there in the first place, you may want to
consider embedding datetime information into the filename or some
index database alongside it.
Other people might have some better solutions.
Matt.
----- Original Message ----- From: "Phil Middlemiss" <[EMAIL PROTECTED]>
To: "NZ Borland Developers Group - Delphi List" <[email protected]>
Sent: Wednesday, July 20, 2005 2:26 PM
Subject: Re: [DUG] determining file system
Hmmm, not quite what I need. I'll keep looking. Cheers,
Phil.
Rohit Gupta wrote:
I seem to recall some api that would give you this info. However,
the nearest I can find is GetVolumeInformation. I know there is
something else, but I cant find it. :-)
Date sent: Wed, 20 Jul 2005 11:08:14 +1200
From: Phil Middlemiss <[EMAIL PROTECTED]>
Organization: MTS Ltd
To: NZ Borland Developers Group - Delphi List
<[email protected]>
Subject: [DUG] determining file system
Send reply to: NZ Borland Developers Group - Delphi List
<[email protected]>
<mailto:[EMAIL PROTECTED]>
<mailto:[EMAIL PROTECTED]>
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Part of our code depends on getting the file stamp of a particular
file, however on systems that have that particular file served by
something like Novell Netware, that timestamp can be something other
than what was expected.
Is there a way to determine the file/operating/network system
(whatever is the correct one to check) of a given location?
Cheers,
Phil.
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