FTP Bandwidth Throttle for Downloads

Demonstrates the Chilkat FTP2 download bandwidth throttling property : BandwidthThrottleDown.

Download 32-bit Chilkat FTP2 ActiveX (.msi)

Download All 32-bit Chilkat ActiveX Components (.zip)

Download All 64-bit Chilkat ActiveX Components (.zip)

uses
    Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
    Dialogs, StdCtrls,
    CHILKATFTP2Lib_TLB,
    OleCtrls;

...

procedure TForm1.Button1Click(Sender: TObject);
var
ftp: TChilkatFtp2;
success: Integer;
localFilename: String;
remoteFilename: String;

begin
ftp := TChilkatFtp2.Create(Self);

//  Any string unlocks the component for the 1st 30-days.
success := ftp.UnlockComponent('Anything for 30-day trial');
if (success <> 1) then
  begin
    ShowMessage(ftp.LastErrorText);

  end;

ftp.Hostname := 'www.example-code.com';
ftp.Username := '****';
ftp.Password := '****';

//  To use FTP bandwidth throttling, set the BandwidthThrottleDown
//  property to a maximum desired bytes/second:
//  This example limits the download to 50K per second.
ftp.BandwidthThrottleDown := 50000;

//  The default data transfer mode is "Active" as opposed to "Passive".

//  Connect and login to the FTP server.
success := ftp.Connect();
if (success <> 1) then
  begin
    ShowMessage(ftp.LastErrorText);

  end;

//  Change to the remote directory where the file is located.
//  This step is only necessary if the file is not in the root directory
//  for the FTP account.
success := ftp.ChangeRemoteDir('junk');
if (success <> 1) then
  begin
    ShowMessage(ftp.LastErrorText);

  end;

//  Download a file.
localFilename := 'hamlet.xml';
remoteFilename := 'hamlet.xml';

success := ftp.GetFile(remoteFilename,localFilename);
if (success <> 1) then
  begin
    ShowMessage(ftp.LastErrorText);

  end;

ftp.Disconnect();

ShowMessage('File Downloaded!');
end;