This is the API documentation for Biomechanical ToolKit (BTK), a cross-platform C++ library with high level functions to open, edit and modify biomechanical acquisition.
If you downloaded the sources of BTK, then you have first to read the building instructions to configure, compile and install it.
The simplest way to use BTK in your program is to take a look at the tutorial.
To well understand the concept of pipelines and theirs mechanisms, look at the advanced tutorial.
And finally, for more informations about the development (code guidelines, unit tests, submit a patch, how to extend BTK's classes, etc) check the developer's page.