procedure TForm1.Button1Click(Sender: TObject);
var
  n, p: integer;
begin
  ListBox1.Clear;
  with Notebook1 do
    for n := 0 to ControlCount - 1 do
      with TPage(Controls[n]) do
      begin
        ListBox1.Items.Add('Notebook Page: ' + TPage(Notebook1.Controls[n]).Caption);
        for p := 0 to ControlCount - 1 do
          ListBox1.Items.Add(Controls[p].name);
        ListBox1.Items.Add(EmptyStr);
      end;
end;