Howto: Convert Hex --> Integer in VB?

[hydr0p0nix]

say I had a var
dim vHex as string
vHex = "&hhe" 'that's a hex code
vHextoInt = '?? ChangeHextoIntegerFunction ?? (vHex)
and I wanted to stuff it into a byte
dim vByteVar as Byte
vByteVar = Cbyte(vHextoInt)

How do I convert the Hex to Int??