Synchronize Remote Directory Tree

Uploads a directory tree from the local filesystem to the FTP server. Synchronization modes include:

mode=0: Upload all files
mode=1: Upload all files that do not exist on the FTP server.
mode=2: Upload newer or non-existant files.
mode=3: Upload only newer files. If a file does not already exist on the FTP server, it is not uploaded.

Download Chilkat FTP2 ActiveX

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

...

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

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 := 'ftp.chilkatsoft.com';
ftp.Username := '***';
ftp.Password := '***';

ftp.KeepSessionLog := 1;

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

  end;

//  Set the current remote directory to the root of
//  the tree where files are uploaded.
success := ftp.ChangeRemoteDir('/abc123');
if (success <> 1) then
  begin
    ShowMessage(ftp.LastErrorText);

  end;

//  Recursively upload all non-existant and newer files.
mode := 2;
success := ftp.SyncRemoteTree('c:/temp/abc123',mode);
if (success <> 1) then
  begin
    ShowMessage(ftp.LastErrorText);

  end;

ftp.Disconnect();

//  Display the session log.
Memo1.Lines.Add(ftp.SessionLog);
end;