Can't find visual code's identification number in C++ codes

[tclh123]

Considered portability, this framework is written only C or C++. The pixel array of an image is passed to CoreAR.framework and then visual code's identification number, rotation and translation matrix are obtained from the image including a visual code.

But I can't find any thing about visual code's identification number in C++ codes. Doesn't finish yet?

[sonsongithub]

Yes, not yet.
But, you can find a source code for it in C(but deprecated...).

I want to do refactoring all C++ code with Eigen library. (http://eigen.tuxfamily.org/index.php?title=Main_Page)
I think my code for matrix operation is not beautiful....