In my previous post Development With Kinect .NET SDK (Part I) – Installation and Development Environment Setup I discussed about fundamentals of Kinect sensors and developing application using Kinect .NET SDK. I also explained different types of API that mainly used for interacting with Kinect Device. Natural User interfaces (NUI) and Audio are the core APIs stack for Kinect sensors and and in the previous article we starts with NUI APIs. By this time you must know how to get start with of NUI API’s by initializing the runtime. Let’s take a inner look of NUI API. In this post I will discuss about NUI APIs for Kinect .NET SDK and will see how we can interact with Kinect Camera Sensors using it.