[Help] GetAsyncKeyState(??) = X??

So, can anybody give me a list of keystates?

For example: 0x4D = 'M'

What is X and A? i need it for a recoil hack I am making, searched everywhere, its way easier to do in C#. lol, anyway, can anybody tell me what X =?

GetAsyncKeyState((int)'a'-32);
a is 97 decimal
0x41(a according to msdn) is 65 decimal
97-65=32
so:
GetAsyncKeyState((int)'x'-32); works, but you must use lowercase chars with my method