Using callback function in C app with swift library

[Fabio_Kaminski]

Hey, i just did a answer into this same question but with C++. I have pointed a possible solution there and i think it can work for your case too.

I hope it helps.

Calling Swift Code from C++

First, while it looks Swift will have a great support for C++ in the near future, for now you will need to create simple C wrappers to your interfaces. I will tell you what i do here: I register a callback in swift that is a c callback, but always pass a 'state' option to the C function. like this: I define a callback structure in C like (thing.h) C++: suppose you have this class class Thing { public: bool A(int x, int y); bool B(int x, int y, int z); bool C(int x); }; thin…