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Const
  Servico_Simples = 1;
  Servico_Unregister = 1;
 
Function RegisterServiceProcess(DwProcessID, dwType: DWord): DWord; StdCall; External ´KERNEL32.dll´;
 
 
procedure TForm1.FormCreate(Sender: TObject);
begin
  RegisterServiceProcess(GetCurrentProcessID, Servico_Simples);
end;
 
procedure TForm1.FormDestroy(Sender: TObject);
begin
  RegisterServiceProcess(GetCurrentProcessID, Servico_Unregister);
end;

  public
  { Public declarations }
  fecha: Boolean;
  end;
 
implementation
 
{$R *.DFM}
 
Function GetStateK (Key: integer): boolean;
begin
  Result := Odd (GetKeyState (Key));
end;
 
procedure Tfrm_HIP.FormClose(Sender: TObject; var Action: TCloseAction);
begin
If Not fecha Then
Action := caNone Else
Action := caFree;
end;
 
procedure Tfrm_HIP.FormKeyDown(Sender: TObject; var Key: Word;
Shift: TShiftState);
begin
If GetStateK (VK_LMENU) And (Key = VK_F4) Then
fecha := False;
end;