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Article #14878Re: is this HANDLE valid ?
From: Remy Lebeau (TeamB)
Date: Tue, 29 Jul 2003 16:37
Date: Tue, 29 Jul 2003 16:37
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"PaoloItaly" <paolo@sirius.tecnoparco.it> wrote in message news:3f26831b$1@newsgroups.borland.com... > How is possible to understand if an HANDLE (file) > is valid before to use it ? You don't, short of simply performing a file operation on the handle and testing for any errors. > I can't check INVALID_HANDLE_VALUE, because > the handle can have a normal value but just close, so the > handle is no more valid You should always set your handle back to INVALID_HANDLE_VALUE after you close the file, for exactly that reason. Once the file is closed, you can test the handle for INVALID_HANDLE_VALUE later on. Gambit
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10cc67,a6eeeeef67823f86 X-Google-Attributes: gid10cc67,public X-Google-ArrivalTime: 2003-07-29 09:40:55 PST From: "Remy Lebeau \(TeamB\)" <gambit47@yahoo.com> Newsgroups: borland.public.cppbuilder.nativeapi References: <3f26831b$1@newsgroups.borland.com> Subject: Re: is this HANDLE valid ? Date: Tue, 29 Jul 2003 09:37:10 -0700 Lines: 21 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 NNTP-Posting-Host: 207.175.226.26 Message-ID: <3f26a159$1@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1059496281 207.175.226.26 (29 Jul 2003 09:31:21 -0700) Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!sn-xit-02!sn-xit-04!sn-xit-01!sn-xit-08!supernews.com!newsfeed.news2me.com!newsfeed.icl.net!newsfeed.fjserv.net!newsfeed00.sul.t-online.de!newsfeed01.sul.t-online.de!t-online.de!newsgroups.borland.com!not-for-mail