Pascal (Lazarus/Delphi)

Base64 Encode/Decode a String

See more Encryption Examples

_LANGUAGE_ example to base-64 encode and decode a string. Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.BinData;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  bd: TBinData;
  s: string;
  strBase64: string;
  bd2: TBinData;
  decoded: string;

begin
  success := False;

  bd := TBinData.Create;

  s := 'A friend called me up the other day and talked about investing in a dot-com that sells lobsters. Internet lobsters. Where will this end? --Donald Trump';

  success := bd.AppendString(s,'utf-8');

  strBase64 := bd.GetEncoded('base64');
  WriteLn(strBase64);

  //  To decode:
  bd2 := TBinData.Create;
  bd2.AppendEncoded(strBase64,'base64');

  decoded := bd2.GetString('utf-8');
  WriteLn(decoded);


  bd.Free;
  bd2.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.