unit Unit1;

 

interface

 

uses

  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

  Dialogs, StdCtrls;

 

type

  TForm1 = class(TForm)

    Button1: TButton;

    procedure FormCreate(Sender: TObject);

    procedure Button1Click(Sender: TObject);

  private

    { Private declarations }

  public

    procedure AppException(Sender: TObject; E: Exception);

  end;

 

var

  Form1: TForm1;

 

implementation

 

{$R *.dfm}

procedure TForm1.AppException(Sender: TObject; E: Exception);

begin

  ShowMessage(E.Message);

end;

 

procedure TForm1.FormCreate(Sender: TObject);

begin

  Application.OnException :=AppException;

end;

 

procedure TForm1.Button1Click(Sender: TObject);

var

  i: integer;

  j: Integer;

begin

  i := 0;

  j := 1;

  ShowMessage(FloatToStr(j/i));

end;

 

end.