DXGICapture is a library version of DXGICaptureSample.
More info in my blog post: (In Chinese)
https://kheresy.wordpress.com/2015/10/01/screen-capture-in-windows/
DXGICaptureSample shows how to enumerate DXGI outputs and perform fast, non-GDI screen capturing.
More info in my blog post:
http://ps.pavelgurenko.com/2013/12/dxgi-outputs-enumeration-and-fast.html