unit uSample;

interface

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

type
  TfrmMain = class(TForm)
    Label1: TLabel;
    Label2: TLabel;
    Button1: TButton;
    procedure FormCreate(Sender: TObject);
    procedure FormDestroy(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  frmMain: TfrmMain;

implementation

{$R *.DFM}

uses
  WhookDef;

procedure TfrmMain.FormCreate(Sender: TObject);
begin
  SetHook(0, 0);
end;

procedure TfrmMain.FormDestroy(Sender: TObject);
begin
  FreeHook;
end;

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

end.