How to GET PDF object zoom and scroll values

[Sergio_1]

Hi, i need to get the zoom and scroll values (X and Y) of a pdf file opened into a PDF object and freely moved by the user.
I know that i can SET these values (PDF.SetZoomScroll) but i don't know how to GET.
Anyone have some suggestion? Will be very useful. Many many thanks!

[Sergio_1]

should be a sort of javascript viewState...