How to use GetViewFrustumBounds

I have a top down arcade game, when the player moves off the left side of the screen I want him to come the right side of the screen, so I have found this:

But I dont know how to get the data required to be able to call the function, in particular how do I get the ViewProjectionMatrix in ue4?

I found this article which gives access to the ViewProjectionMatrix
http://.github.io/blog/2014/10/11/snapping-points-into-screen-boundaries-in-unreal-engine-4/