How to use GetKeyState()

[Amaz1ng]

WORD keyState;
//.............
keyState = GetKeyState(VK_SHIFT);
		if(HIWORD(keyState) & 0x80)
		{
			MessageBox(NULL, TEXT("SHIFT Down"), TEXT("Key State"), MB_OK);
		}

Not sure how to go about detecting whether the hi order bit is 1...which is what I need D:

-edit-
ok nm I got it

if(GetKeyState(VK_SHIFT) & 0x80)
		{
			MessageBox(NULL, TEXT("SHIFT Down"), TEXT("Key State"), MB_OK);
		}