If you already know a bit of C++ and want to work on a mostly code environment, a framework seems a better choice. For example SFML is a low level interface to help with rendering, audio, input etc and could be a good choice. Bear in mind, it's quite bare bones so no editor or fancy tools.
Another choice could be Cocos2d-x, take a look to see if its more your cup of tea. I could suggest a couple more but it's hard without knowing more about your background or experience, I also sense a slight language barrier here, so if you speak spanish and wish to hear more, feel free to PM me as I do too.