(Delphi DLL) Base64 Encode/Decode a String

Delphi DLL example to base-64 encode and decode a string.

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

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
bd: HCkBinData;
s: PWideChar;
success: Boolean;
strBase64: PWideChar;
bd2: HCkBinData;
decoded: PWideChar;

begin
bd := CkBinData_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 := CkBinData_AppendString(bd,s,'utf-8');

strBase64 := CkBinData__getEncoded(bd,'base64');
Memo1.Lines.Add(strBase64);

// To decode:
bd2 := CkBinData_Create();
CkBinData_AppendEncoded(bd2,strBase64,'base64');

decoded := CkBinData__getString(bd2,'utf-8');
Memo1.Lines.Add(decoded);

CkBinData_Dispose(bd);
CkBinData_Dispose(bd2);

end;