Article View: borland.public.cppbuilder.nativeapi
Article #10574Re: download file from internet
From: Remy Lebeau (TeamB)
Date: Mon, 05 Apr 2004 17:48
Date: Mon, 05 Apr 2004 17:48
35 lines
2360 bytes
2360 bytes
"ScOe" <cbinders@hotmail.com> wrote in message
news:406ab532@newsgroups.borland.com...
> hInternet = InternetOpen("CBZCommander", INTERNET_OPEN_TYPE_DIRECT,
> NULL, NULL, INTERNET_FLAG_ASYNC);
The lpszAgent parameter is the same value that will be transmitted to the
HTTP server as the "user-agent" header. You should format that string to
better match what browsers actually send. Some HTTP servers are actually
designed to reject unknown/malformed user agents.
Also, why specify aschyronous mode if your code is not using the connection
asycnronously to begin with?
> i've use InternetOpen, InternetConnect, HttpOpenRequest,
> InternetReadFile but i allways get 0 sized file.
At no point in the code you have shown are you checking the WinInet
functions for errors. Are any of them actually returning errors?
> HANDLE hFile = CreateFile("e:\\temp\\downloaded.tmp", GENERIC_WRITE,
> FILE_SHARE_WRITE, NULL,CREATE_NEW, 0, 0);
Why would you share the file such that other processs could write to it at
the same time that you are? You should use FILE_SHARE_READ instead.
> while(InternetReadFile(hResource, &buf, sizeof(buf), &bytesRead)){
You should get rid of the '&' on the lpBuffer parameter:
while(InternetReadFile(hResource, buf, sizeof(buf), &bytesRead)){
Gambit
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10cc67,3762eecd161977b9 X-Google-Attributes: gid10cc67,public X-Google-ArrivalTime: 2004-04-05 10:55:25 PST From: "Remy Lebeau \(TeamB\)" <gambit47.no.spam@no.spam.yahoo.com> Newsgroups: borland.public.cppbuilder.nativeapi References: <406ab532@newsgroups.borland.com> Subject: Re: download file from internet Date: Mon, 5 Apr 2004 10:48:24 -0700 Lines: 37 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 NNTP-Posting-Host: 67.22.138.253 Message-ID: <40719be3$1@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1081187299 67.22.138.253 (5 Apr 2004 10:48:19 -0800) Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!news.glorb.com!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!news-out1.nntp.be!propagator2-sterling!propagator3-cogent!news-in.nuthinbutnews.com!newsfeeds.ihug.co.nz!ihug.co.nz!newsgroups.borland.com!not-for-mail