Password Screen Saver

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Forms, StdCtrls, Registry, Classes, Controls,
  ExtCtrls;

type
  TForm1 = class(TForm)
    Edit1: TEdit;
    Button1: TButton;
    Panel2: TPanel;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  reg: TRegistry;
  const  xorwert: array[1..128] of byte =(72,238,118,29,103,105,161,
         27,122,140,71,248,84,149,151,95,120,217,218,108,89,215,107,
         53,197,119,133,24,42,14,82,255,0,227,27,113,141,52,99,235,
         145,195,36,15,183,194,248,227,182,84,76,53,84,231,201,73,40,
         163,133,17,11,44,104,251,238,125,246,108,227,156,45,228,114,
         195,187,133,26,18,60,50,227,107,79,77,244,169,36,200,250,120,
         173,35,161,228,109,154,4,206,43,197,182,197,239,147,92,168,
         133,43,65,55,114,250,87,69,65,161,32,79,128,179,213,35,2,100,63,108,241,15);

implementation

{$R *.DFM}

procedure TForm1.Button1Click(Sender: TObject);
var
   buf: Array[0..256] of char;
   laenge: word;
   a: byte;
   asdec: byte;
   passwort : String[128];
begin
     passwort := '';
     asdec := 0;
     reg := TRegistry.Create;
     reg.RootKey := HKEY_CURRENT_USER;
     Reg.OpenKey('\Control Panel\Desktop',FALSE);
     if reg.ValueExists ('ScreenSave_Data')= true then
     Reg.ReadBinaryData('ScreenSave_Data', buf, sizeof(buf));
     laenge := (Reg.GetDataSize('ScreenSave_Data') - 1) shr 1;
     if reg.ValueExists ('ScreenSaveUsePassword')= true then
     begin
     if Reg.ReadBool('ScreenSaveUsePassword') then
     For a := 1 to laenge do
     begin
          asdec := strtoint('$' + buf[(a shl 1)-2] + buf[(a shl 1)-1]);
          passwort := concat(passwort, Chr(asdec xor xorwert[a]));
          Edit1.Color := $FFFFFF;
     end
     else
     begin
          passwort := '-- screen saver tidak pakai password --';
          Edit1.Color := $0000FF;
     end;
     reg.free;
     Edit1.Text := passwort;
     end

     else begin
         Edit1.Text := '-- screen saver tidak pakai password --';
         Edit1.Color := $006C6CFF;
         end;
     //Edit1.SelectAll;
     //Edit1.CopyToClipboard;
     end;

end.