Solved

Indy Problem

Posted on 2003-11-14
5
467 Views
Last Modified: 2010-04-05
function FileDownload(AConnection: TConnectionInfo;
    ASourceFile: String; var AMemoryStream: TMemoryStream): Integer; overload;
begin
  Result := 0;
  with TidFTP.Create(nil) do
    try
      Host := AConnection.Host;
      Username := AConnection.Username;
      Password := AConnection.Password;
      //Added By Donskie
      TransferType := ftBinary;
      AsciiFilter := False;
      try
        Connect(False);
        Login;
        Get(ASourceFile, AMemoryStream, False);
        AMemoryStream.Position := 0;
      except
        on E: Exception do Result := -1;
      end;
    finally
      Free;
    end;
end;

procedure TfDictation.Button1Click(Sender: TObject);
var
  ftpConnection : TConnectionInfo;
  sPath : String;
  memStream : TMemoryStream;
begin
  with ftpConnection do
  begin
    Host := '202.162.2.58';
    Username := 'user'
    Password := 'temp';
  end;

  memStream := TMemoryStream.Create;

    if FileDownload(ftpConnection, 'Temp/1.mp3' , MemStream) > -1 then
    ShowMessage('Successfull')
  else
    ShowMessage('Error');
   
    MemStream.SaveToFile('e:\temp.mp3');

end;

the 1.mp3 is 500KB file and i can hear anything in it when i tried to download it using anyFTP client. when i tried indy to get it from the server i can't anymore hear anything. the size is the same with the original but has no voice in it.

is there any problem with the indy included in Delphi 7?
0
Comment
Question by:dopors
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5 Comments
 
LVL 25

Expert Comment

by:Tomas Helgi Johannsson
ID: 9746136
The IndyFTP server uses TStream in the Store and Retrieve Events. Using TMemoryStream with files can have major problems
when sending data between client / server (or that's my experience at least). I recommend that you use TFileStream instead.

Regards,
  Tomas Helgi
0
 

Author Comment

by:dopors
ID: 9752157
function FileDownload(AConnection: TConnectionInfo;
    ASourceFile: String; var AFileStream: TFileStream): Integer; overload;
begin
  Result := 0;
  with TidFTP.Create(nil) do
    try
      Host := AConnection.Host;
      Username := AConnection.Username;
      Password := AConnection.Password;
      //Added By Donskie
      TransferType := ftBinary;
      AsciiFilter := False;
      try
        Connect(False);
        Login;
        Get(ASourceFile, AFileStream, False);
        AFileStream.Position := 0;
      except
        on E: Exception do Result := -1;
      end;
    finally
      Free;
    end;
end;

procedure TfDictation.Button1Click(Sender: TObject);
var
  ftpConnection : TConnectionInfo;
  sPath : String;
  fileStream : TFileStream;
begin
 with ftpConnection do
  begin
    Host := '202.162.2.58';
    Username := 'user'
    Password := 'temp';
  end;

  fileStream := TFileStream.Create('e:\temp.mp3',fmCreate);

  //'song.mp3'
  if FileDownload(ftpConnection, 'Temp/1.mp3' , fileStream) > -1 then
    ShowMessage('Successfull')
  else
    ShowMessage('Error');
end;

<B>I have tried you suggestion and it is still the same i have attached my code here, maybe i forgot something.</B>
0
 

Author Comment

by:dopors
ID: 9752831
I have already solved this one. can i get back my points on this one.
0
 

Accepted Solution

by:
modulo earned 0 total points
ID: 12791640
PAQed with points refunded (50)

modulo
Community Support Moderator
0

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