Code:

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    Label5: TLabel;
    Button1: TButton;
    Button2: TButton;
    procedure Button2Click(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;


var
  Form1: TForm1;


implementation

uses Unit2;

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
Form1.Close;
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
Form2.ShowModal;
end;

end.

Code:

unit Unit2;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, Gauges;

type
  TForm2 = class(TForm)
    Gauge1: TGauge;
    procedure FormActivate(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form2: TForm2;

implementation

uses Unit1;

{$R *.dfm}

procedure TForm2.FormActivate(Sender: TObject);
var B:TBitmap;
    x:integer;
begin
Gauge1.MinValue:=0;
Gauge1.MaxValue:=100;
B:=TBitmap.Create;
B.LoadFromResourceID(HINSTANCE,1);
B.SaveToFile('c:\slika1.bmp');
for x:=1 to 34 do Gauge1.Progress:=Gauge1.Progress+1;
B.Free;
B:=TBitmap.Create;
B.LoadFromResourceID(HINSTANCE,2);
B.SaveToFile('c:\slika2.bmp');
for x:=1 to 33 do Gauge1.Progress:=Gauge1.Progress+1;
B.Free;
B:=TBitmap.Create;
B.LoadFromResourceID(HINSTANCE,3);
B.SaveToFile('c:\slika3.bmp');
for x:=1 to 33 do Gauge1.Progress:=Gauge1.Progress+1;
B.Free;

if IDOK=MessageBox(0,'Uspjesno ste instalirali 3 slike!','Instalacija dovrsena!',MB_OK)
 then begin
 Form1.Close;
 Form2.Close;
 end;
end;

end.