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procedure TMyForm.Button1Click(Sender: TObject);
Var KeyState : TKeyboardState; begin GetKeyboardState(KeyState); if (KeyState[VK_NUMLOCK] = 0) then KeyState[VK_NUMLOCK] := 1 else KeyState[VK_NUMLOCK] := 0; SetKeyboardState(KeyState); end; Для Caps Lock замените VK_NUMLOCK на VK_CAPITAL |