unit Unit1;

interface

uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls;

type
TForm1 = class(TForm)
Edit1: TEdit;
Button1: TButton;
Label1: TLabel;
procedure FormCreate(Sender: TObject);
procedure Button1Click(Sender: TObject);
procedure Edit1KeyPress(Sender: TObject; var Key: Char);
private
{ Déclarations privées }
public
{ Déclarations publiques }
end;

var
Form1: TForm1;

implementation

uses Unit2;

{$R *.DFM}

procedure TForm1.FormCreate(Sender: TObject);
begin
Label1.Caption := 'أدخل كلمة المرور';
Edit1.Text := '';
Button1.Caption := 'موافق';
Form1.Caption := 'كلمة المرور';
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
if Edit1.Text = '1954' then
begin
Form2.Show; // or Form1.ShowModal;
Form1.Hide;
end
else ShowMessage('كلمة المرور خاطئة');
Edit1.Text := '';
end;

procedure TForm1.Edit1KeyPress(Sender: TObject; var Key: Char);
begin
if key = #13 then Button1Click(Sender);
end;

end.
--------------------------------------
الوحدة الثانية
--------------------------------------
unit Unit2;

interface

uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls;

type
TForm2 = class(TForm)
Button1: TButton;
Label1: TLabel;
procedure FormClose(Sender: TObject; var Action: TCloseAction);
procedure Button1Click(Sender: TObject);
procedure FormCreate(Sender: TObject);
private
{ Déclarations privées }
public
{ Déclarations publiques }
end;

var
Form2: TForm2;

implementation

uses Unit1;

{$R *.DFM}

procedure TForm2.FormClose(Sender: TObject; var Action: TCloseAction);
begin
// اظهار النموذج الاول
Form1.Show;
end;

procedure TForm2.Button1Click(Sender: TObject);
begin
// خروج من البرنامج
Application.Terminate;
end;

procedure TForm2.FormCreate(Sender: TObject);
begin
// اغلاق البرنامج
Button1.Caption := 'خروج من البرنامج';
Form2.Caption := 'واجهة المشروع';
Label1.Caption := 'هذا مشروعي مرحبا بكم';
end;

end.