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Filesize using Wininet but not using ftp protocol

Posted on 2003-10-29
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Last Modified: 2010-04-05
Hi.

Question same as in title. Need to find out what is the file size (in bytes) that is placed on web server. Is it possible when working with wininet ??

Thank you in advance
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Question by:Murdoc
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4 Comments
 

Author Comment

by:Murdoc
ID: 9644890
..i forgot to tell you that i do not want to use wininet ftp protocol   :)
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LVL 26

Expert Comment

by:EddieShipman
ID: 9647502
I think that if you do a HEAD, you can check the content-length...
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Accepted Solution

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EddieShipman earned 400 total points
ID: 9647539
better yet, you can do it like this with HttpQueryInfo:

var
  hSession: HINTERNET;
  hService: HINTERNET;
  FileSize: Longint;
  dwSize, Reserved: DWORD;
  buf: String;
begin
  hSession := InternetOpen( 'MyApp', INTERNET_OPEN_TYPE_PRECONFIG, nil, nil, 0 );
  if Assigned( hSession ) then
  begin
    hService := InternetOpenUrl(hSession, PChar(sURL), nil, 0, 0, 0);
    if Assigned( hService ) then
    begin
      dwSize := sizeof(FileSize);
      Reserved := 0;
      HttpQueryInfo(hService, HTTP_QUERY_CONTENT_LENGTH or HTTP_QUERY_FLAG_NUMBER,
                    @FileSize, dwSize, Reserved);
      buf := Format('FileSize:%d', [FileSize]);
      Memo1.Lines.Add( buf );
    end;
    InternetCloseHandle( hService );
  end;
  InternetCloseHandle( hSession );
end;
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Author Comment

by:Murdoc
ID: 9648579
Thanks a lot Eddie.
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