ccli | Cryptopus Command Line Client | Data Processing library

Apologize for my very basic knowledge of C++/CLI, but it has only been introduced to me recently as a necessity. I am trying to create a wrapper for an unmanaged C++ library using C++/CLI. I have followed this helpful guide and can confirm that it (somehow) does the trick. The problem I have is with C++ pointers which expose access to public classes in the unmanaged library. In my CPP library I used them to call the methods from several classes, by having access to a single point-of-entry class. In C# I can't access the methods which should be accessible via these class pointers. I am getting an error stating "the member is inaccessible due to its protection level" and the "->" pointer does not grant access to the exposed class members.

Here's what my code looks like:

UnmanagedCode::ClassA