The reference PDF

Maybe a stupid question ... The reference contains all the features MQL5 has? For example (I don't know C++, I have just some C background) for fully learning the OOP features in MQL5, studying the reference is enough ... or should I also read a C++ book?
Attila.K:
Maybe a stupid question ... The reference contains all the features MQL5 has? For example (I don't know C++, I have just some C background) for fully learning the OOP features in MQL5, studying the reference is enough ... or should I also read a C++ book?
Reference is enough 
Khurram Mustafa:
Reference is enough 
Thanks a lot.
Attila.K:
Thanks a lot.
You are welcome :)