Unfortunately, there isn't a silver bullet for this kind of porting. For example, as you say, in C++ you can pack data structures rather tightly by using such things like nested structures or variable sized structures, yet those aren't doable in managed code. There's no multiple inheritance either, and template capability is limited.
You should first look at how data structures are defined in your C++ code very carefully, and try to map it to C#. If that goes well,porting the behaviors (that is, method/function) should be a relatively easier part.
=================
Noise Cancelling Headphones|
SEO Agency
