روشن کردن numlock با کد دلفی
uses
Windows;
...
procedure SetNumLockOn;
var
KeyState: TKeyBoardState;
begin
GetKeyboardState(KeyState);
if GetKeyState(VK_NUMLOCK) = 0 then begin
KeyState[VK_NUMLOCK] := 1;
SetKeyboardState(KeyState);
end;
end;