procedure GetKLList(List: TStrings);
 var
 AList : array [0..9] of Hkl;
 AklName: array [0..255] of Char;
 i: Longint;
 begin
 List.Clear;
 for i := 0 to GetKeyboardLayoutList(SizeOf(AList), AList) - 1 do
 begin
 GetLocaleInfo(LoWord(AList[i]), LOCALE_SLANGUAGE, AklName, SizeOf(AklName));
 List.AddObject(AklName, Pointer(AList[i]));
 end;
 end;

 procedure TForm1.FormCreate(Sender: TObject);
 begin
 GetKLList(ListBox1.Items);
 end;

 procedure TForm1.ListBox1Click(Sender: TObject);
 begin
 with Sender as TListBox do
 ActivateKeyboardLayout(Hkl(Items.Objects[ItemIndex]), 0);
 end;