Getting player's current position/Orientation. C++ API

I'm sure this is a very simple thing, but I haven't been able to find the solution. I'm working with the demos (RoomTiny) trying to figure out how to obtain the current position of the player/camera in the World. The reason I need it it's because I want to be able to modify that position relative to a Model's position in the Scene. The example code isn't very clear on how to achieve this. Also, I need to modify the Yaw and the Roll relative to this model's coordinates but I think I've figured that one out.