问题
In my other question, I've been trying to find someone who knows where to find free open source OCR library for C#. However, it seems there is only C++ library and obviously, C++ is not C#.
One of the responds suggested to write my own wrapper in C#. I have pretty much no idea how to do it, where to learn to do it, or what it actually is - except I believe it's calling C++ methods in dll by changed method calls, .. that's just assumption, indeed.
Please, help out one more newbie. Thank you
回答1:
You can get a good start here:
Call Unmanaged Code. Part 1 - Simple DLLImport
回答2:
If you're wrapping is very simple, you can get away with P/Invoke. If you actually want managed objects, your easiest solution is probably to write the wrapper in C++/CLI (formerly Managed C++), as that provides a full feature set for managed/unmanaged interop.
回答3:
here's how I do it Interop. It shows you how to do the simple cases (BOOL to bool) as well as a bit of a harder case (passing a struct with pointers to managed memory). Good luck.
来源：https://stackoverflow.com/questions/749520/how-to-write-my-own-wrapper-in-c