Getting wrong Screen Res from Win 8

On a Win8 hires display machine which has resolution of 3200 by 1800; using VS2010 to write a winforms app. Using .net 4.

I use this call and get 900 by 1600 (about a quarter of the size expected):

intscreenWidth =Screen.GetBounds(newPoint(0, 0)).Width;

intscreenHeight =Screen.GetBounds(newPoint(0, 0)).Height;

Is there another way to get the size for Win8?

intscreenHeight =Screen.GetBounds(newPoint(0, 0)).Height;