private void SetDimensions()
{
_screenDims = DisplayUtil.GetDisplaySize();
var rect = _screenDims;
_width = 0;
_height = 0;
_left = rect.Left;
_top = rect.Top;
_width = rect.Width;
_height = rect.Height;
_width = Math.Abs(_width);
_height = Math.Abs(_height);
}