unit TabDis;

interface

uses
  SysUtils, WinTypes, WinProcs, Messages, Classes, Graphics,
  Controls, Forms, Dialogs, StdCtrls, TabNotBk;

type
  TFrmTabDis = class(TForm)
    TabbedNotebook1: TTabbedNotebook;
    Button1: TButton;
    procedure FormCreate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;

var
  FrmTabDis: TFrmTabDis;

implementation

{$R *.DFM}

procedure TFrmTabDis.FormCreate(Sender: TObject);
var
  i: integer;
  j: integer;
begin
  { Создаем имена для всех Notebook TTabButton }

  j := 0;

  with TabbedNotebook1 do
    for i := 0 to ControlCount - 1 do
      if Controls[i].ClassName = 'TTabButton' then
      begin
        Controls[i].Name := Controls[i].ClassName + IntToStr(j);
        Inc(j);
      end;
end;

procedure TFrmTabDis.Button1Click(Sender: TObject);
begin
  { Делаем недоступной определенную страницу notebook }
  with TControl(TabbedNotebook1.FindComponent('TTabButton2')) do
    Enabled := not Enabled;
end;

end.