Answer 1

No, because graphic libraries specially in c++ are really big and complex. But you can learn whats in there, when you make a look to the docs:

https://docs.microsoft.com/en-us/cpp/standard-library/cpp-standard-library-overview?view=vs-2017

If you want to make some graphics respectively a ui/gui and you dont have a library yet I recommend you do have a look to OpenGL, Qt and SFML. :)