(Delphi ActiveX) FTP Upload / Download to a BinData Object

Demonstrates how to FTP upload the contents of a BinData object, and FTP downloads to the a BinData object.

Chilkat for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

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
ftp: TChilkatFtp2;
success: Integer;
bdA: TChilkatBinData;
remoteFilename: WideString;
bdB: TChilkatBinData;

begin
// This example assumes Chilkat Ftp2 to have been previously unlocked.
// See Unlock Ftp2 for sample code.

ftp := TChilkatFtp2.Create(Self);

ftp.Hostname := 'www.my-ftp-server.com';
ftp.Username := 'mFtpLogin';
ftp.Password := 'myFtpPassword';

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

// Authenticate with the FTP server.
success := ftp.LoginAfterConnectOnly();
if (success <> 1) then
  begin
    Memo1.Lines.Add(ftp.LastErrorText);
    Exit;
  end;

bdA := TChilkatBinData.Create(Self);
bdA.LoadFile('qa_data/jpg/penguins.jpg');

// Upload the contents of bdA to the FTP server.
remoteFilename := 'penguins.jpg';
success := ftp.PutFileBd(bdA.ControlInterface,remoteFilename);
if (success <> 1) then
  begin
    Memo1.Lines.Add(ftp.LastErrorText);
    Exit;
  end;

// Download...
bdB := TChilkatBinData.Create(Self);
success := ftp.GetFileBd(remoteFilename,bdB.ControlInterface);
if (success <> 1) then
  begin
    Memo1.Lines.Add(ftp.LastErrorText);
    Exit;
  end;

// Verify that bdA and bdB have the exact same contents.
Memo1.Lines.Add('size of bdA: ' + IntToStr(bdA.NumBytes));
if (bdA.ContentsEqual(bdB.ControlInterface) = 1) then
  begin
    Memo1.Lines.Add('Contents are equal. Success.');
  end
else
  begin
    Memo1.Lines.Add('Contents are NOT equal.  Failed.');
  end;

ftp.Disconnect();
end;