Delphi DLL

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. Delphi DLL

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Ftp2, BinData;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
ftp: HCkFtp2;
bdA: HCkBinData;
remoteFilename: PWideChar;
bdB: HCkBinData;

begin
success := False;

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

ftp := CkFtp2_Create();

CkFtp2_putHostname(ftp,'www.my-ftp-server.com');
CkFtp2_putUsername(ftp,'mFtpLogin');
CkFtp2_putPassword(ftp,'myFtpPassword');

// Connect to the FTP server.
success := CkFtp2_ConnectOnly(ftp);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkFtp2__lastErrorText(ftp));
    Exit;
  end;

// Authenticate with the FTP server.
success := CkFtp2_LoginAfterConnectOnly(ftp);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkFtp2__lastErrorText(ftp));
    Exit;
  end;

bdA := CkBinData_Create();
CkBinData_LoadFile(bdA,'qa_data/jpg/penguins.jpg');

// Upload the contents of bdA to the FTP server.
remoteFilename := 'penguins.jpg';
success := CkFtp2_PutFileBd(ftp,bdA,remoteFilename);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkFtp2__lastErrorText(ftp));
    Exit;
  end;

// Download...
bdB := CkBinData_Create();
success := CkFtp2_GetFileBd(ftp,remoteFilename,bdB);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkFtp2__lastErrorText(ftp));
    Exit;
  end;

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

CkFtp2_Disconnect(ftp);

CkFtp2_Dispose(ftp);
CkBinData_Dispose(bdA);
CkBinData_Dispose(bdB);

end;