Skeleton without Unity

I work on RealSense D415 camera with Nuitrack and I would like to make the skeleton from the joints but without using Unity. When I look at Nuitrack, I find only code using Unity. Can someone help me?

Look at to find examples in C++/C#
They should be available in the Nuitrack SDK
You can also use OpenCV or PCL if you are familiar with

Thank for your answer.
I’m already been to see here but there is not a code in C # which allows to trace the skeleton. Only in C ++.