From:	"Joe Hagen" <jdhagen AT chorus DOT net>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: What is the canonical way to find out if a file exists (in g++)?
Date:	Wed, 5 Jan 2000 23:26:16 -0600
Organization:	Chorus Netwoks
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To:	djgpp AT delorie DOT com
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Reply-To:	djgpp AT delorie DOT com

Mike,

   NT doesn't have native support for the extended LFN
(long file name) INT 21 file I/O calls (the 71XX services) which
provide the support under '95 and '98.

   There is a utility that you can run in a Command Prompt
under NT that will load these services by using a VDD
(Virtual Device Driver),  but it does slow the session down because
it has to route the 16 bit calls through the VDD.  This tends
to consume a lot of CPU time.

   After loading this driver in that session, a 16 bit program
running in that session will be able to handle long filenames.

   You can go to this site and check out the info about LFN for NT:

                     http://www.cybertrails.com/~fys/longfile.htm

Joe
jdhagen AT chorus DOT net

>
> Is there any way that I can find files with long file names?
> I tried findfirst (), which is supposed to work with long file names,
> with no joy.

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