Delphi ActiveX

FTP Download File to a Stream

Demonstrates how to FTP download a file to a Chilkat stream. Delphi ActiveX

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Integer;
ftp: TChilkatFtp2;
streamObj: TChilkatStream;

begin
success := 0;

// This example assumes the Chilkat FTP2 API to have been previously unlocked.
// See FTP2 Unlock Sample for sample code.

ftp := TChilkatFtp2.Create(Self);

ftp.Hostname := 'my-ftp-server.com';
ftp.Port := 21;
ftp.Username := 'mFtpLogin';
ftp.Password := 'myFtpPassword';
ftp.AuthTls := 1;
ftp.Passive := 1;

// Connect and login to the FTP server using TLS.
success := ftp.Connect();
if (success <> 1) then
  begin
    Memo1.Lines.Add(ftp.LastErrorText);
    Exit;
  end;

// Move to the sub-directory (from the FTP user's home directory) where the file is located.
success := ftp.ChangeRemoteDir('temp');
if (success = 0) then
  begin
    Memo1.Lines.Add(ftp.LastErrorText);
    Exit;
  end;

// Stream to this local file:
streamObj := TChilkatStream.Create(Self);
streamObj.SinkFile := 'c:/temp/qa_output/penguins2.jpg';

success := ftp.GetFileToStream('penguins2.jpg',streamObj.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(ftp.LastErrorText);
    Exit;
  end;

ftp.Disconnect();

Memo1.Lines.Add('Success.');
end;