C++ VS. D3D?

Well im wanting to get alot more in to programming and game hacking. But i got a few small questions. First off what is D3D (i already know what C++ is but whats D3D, D3d is new to me C++ has been around me often). Also whats better for making game hacks C++ or D3D? Also what is easier and what is harder? Well thanks guys for reading sorry if this is a bit off topic its just i am wanting to learn how to code/program to get a bit of a start in CA hacking other then memory hacking.

D3D allows you to get a graphical interface while using a .dll made in C++. They work together, they aren't two separate coding languages.

C++, d3d, same, like seemliss said...