Задержка окна программы

[jaketaylor]

Начал осваивать билдер.
Создал проект.
main.cpp

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

#include <vcl.h>
#pragma hdrstop

#include "main.h"

//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------
double A = 1;
void __fastcall TForm1::Button1Click(TObject *Sender)
{
        int i;
        for(i = 0; i < 50; i++)
        A *= 1000;
        Label1 -> Caption = "A = " + FloatToStr(A);
}
//---------------------------------------------------------------------------

main.h

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

#ifndef mainH
#define mainH
//---------------------------------------------------------------------------
#include <Classes.hpp>
#include <Controls.hpp>
#include <StdCtrls.hpp>
#include <Forms.hpp>
//---------------------------------------------------------------------------
class TForm1 : public TForm
{
__published:	// IDE-managed Components
        TLabel *Label1;
        TButton *Button1;
        void __fastcall Button1Click(TObject *Sender);
private:	// User declarations
public:		// User declarations
        __fastcall TForm1(TComponent* Owner);
};
//---------------------------------------------------------------------------
extern PACKAGE TForm1 *Form1;
//---------------------------------------------------------------------------
#endif

После компиляции (F9) быстро исчезает окно программы. Как сделать задержку?