Welcome!

I agree with all what Crisp_N_Dry said, though IMO the standard Windows graphics API may be a bit too easy and dull to begin with. It all depends of course on the kind of games you're going to start with, but unless you're going for tic tac toe, I'd recommend looking into a wrapper like delphix, omega, or one of the others listed [here]. I found especially delphix a great tool to start with.