Re: Dir() question

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As well as the locking issues (which can be freed using a token call to
Dir$("nul")), and the re-entrancy issues, there are also wildcard issues
with Dir$ Rob. See
http://groups.google.ie/group/microsoft.public.vb.general.discussion/msg/a0ff878889e6f52f
for a mention.

Tony Proctor

"Robert Morley" <rmorley@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:Oy9WnBfhHHA.4732@xxxxxxxxxxxxxxxxxxxxxxx
Ah, okay, I was aware of the directory locking issues of Dir() and the
possibility of competing Dir() commands getting confused. I hadn't
considered going with the API commands, though. For my purposes, it's
unlikely to matter, but it's something I'll look into later, when I have
more time to revise my code.


Thanks,
Rob

"J French" <erewhon@xxxxxxxxxx> wrote in message
news:462c5b39.4097212@xxxxxxxxxxxxxxxxxxxxxxx
On Sun, 22 Apr 2007 17:31:49 -0400, "Robert Morley"
<rmorley@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

Hi Mike,

Dir is not a good choice for this for a number of reasons.

Can you elaborate on this a bit more?

If you are in a Dir() loop, then another call to Dir upsets the loop
- you can't have more than one running at a time

As a result it is generally good policy to avoid the use of Dir()
especially in 'buried' routines.

The best solution is to use the FindFirstFile / FindNextFile /
FindClose APIs

However, in this case the GetAttr function will work fine, although
there have been reports that it misbehaves on some networks, I think
those problems were legacy.

To be honest I doubt if GetAttr is any faster, as it still has to
locate the file in the directory structure
- but using it will save potential grief from disrupted Dir routines




.

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