GetWorldState - More information anywhere?

[Tanaris4]

I was just reversing GetWintergraspWaitTime for mac and realized that GetWorldState is what eventually gives the time until the next WG. Does anyone have any information on what you can actually pass GetWorldState? There are only 2 threads on mmowned (that I can see) which only list the function address, and hardly anything on Google except for one Hellfire reference.

Thanks in advance!

Edit: Cleaned up GetWintergraspWaitTime: http://tanaris4.ampaste.net/f666cddb4