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Article #10612

Re: download file from internet

#10612
From: Dave
Date: Wed, 31 Mar 2004 14:09
44 lines
2356 bytes
try the following:

Drop a TIdHTTP component on a new Project and a Button.
On the ButtonClick Event write the following code.

try{
  TMemoryStream *File = new TMemoryStream();
  IdHTTP1->Get("your url", File);
  File->SaveToFile("your file");
}catch(Exception &Except){
  ShowMessage("Error occured " + Except.Message);
}

HTH,
David

On Wed, 31 Mar 2004 14:07:59 +0200, ScOe wrote:

> How can i download file from adress like
> http://server/dir1/dir2/dir3/file.ext
> 
> i've use InternetOpen, InternetConnect, HttpOpenRequest, InternetReadFile
> but i allways get 0 sized file.
> 
> code:
> hInternet = InternetOpen("CBZCommander", INTERNET_OPEN_TYPE_DIRECT,
>                 NULL, NULL, INTERNET_FLAG_ASYNC);
> Inethandle = InternetConnect(hInternet,"server",
>         INTERNET_DEFAULT_HTTP_PORT, NULL,
>         NULL, INTERNET_SERVICE_HTTP, NULL, NULL);
> HINTERNET hResource = HttpOpenRequest(Inethandle,
>         NULL, "dir1/dir2/dir3/file.ext", NULL, NULL, NULL,
> INTERNET_FLAG_RELOAD, NULL);
> char buf[4096];
> DWORD bytesRead, totalRead = 0, BytesWritten;
> HANDLE hFile = CreateFile("e:\\temp\\downloaded.tmp", GENERIC_WRITE,
>         FILE_SHARE_WRITE, NULL,CREATE_NEW, 0, 0);
> if(hFile == INVALID_HANDLE_VALUE){
>     ShowMessage("URLDownloadToFileA: Unable to open file for write: "+
>         String(GetLastError()));
>     }
> else {
>     while(InternetReadFile(hResource, &buf, sizeof(buf), &bytesRead)){
>     ...
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From: Dave <dave_xse@-spam-hotmail.com>
Subject: Re: download file from internet
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