P3D v4 Getting waypoints from PMDG 737 NGX

Hi! Im trying to get the waypoints from PMDG 737 NGX but I don't know where to start.
My application connects to simconnect and get some standard info like altitude and speed etc. But I also want to get waypoints from PMDG 737 ( more exact, the next waypoint ). How would I do this? Im using C# for my project.

Im looking in the PMDG_NGX_SDK.h file but I can't seem to find anything in there about the waypoints.

Thanks in advance :)
Hi Gustav,

I don't know anything about this header, but if it is not declared in there, maybe there simply is no way to get this information?

Greets, Benny