public virtual SizeF GetShadowOffset( 
   GoView view
)

A SizeF value that specifies the X and Y offset from the object's position. A positive value for X places the drop shadow toward the right; a positive value for Y places it toward the bottom. Normally this value has small positive values for both Width (X) and Height (Y), resulting in a shadow that corresponds to a light source coming from the top left of the view.