GetBounds Method (StrokeCollection)
Returns a Rect which is the bounding box of the strokes in the collection.
Cannot use methods in XAML.
retval = object.GetBounds()
The bounding box of the strokes in the StrokeCollection.
Do not attempt to set values in the returned Rect; it should be used for reference only.
var newRect = inkPresenter.Strokes.GetBounds();