Hierarchy and structure of source code

[cs19]

Hello,

I have been a loyal user of FileZilla for a long time. Now I have downloaded the source code and have been trying to understand how the code works.
However, because of the lack of comments, I have not yet achieved a satisfactory understanding yet. Do you have some documentations on how each class is interconnected?
I am looking into option_change_event_handler.cpp now. Is it possible for you to tell me how this works in the engine?

Thank you so much!

[botg]

There's no such documentation.

COptionChangeEventHandler is not currently used by the engine. The interface makes ample use of it though.