Convert BP Class to C++ for Detail

Hi! Everyone, I’m new here.
I’d like to know if i can convert a Blueprint class to a pure C++ class, i want to see the detail of BP class in the VS2017, if i can?

solved! in 4.19, Open your blue print , File->Developer. click it. “C++ → generate native code”

than you can find the source c++ file in …/…/Unreal Projects/ProjectName/Intermediate/NativizationTest/