GetBaseClassPickRectangle Method

If the get was a GetObjects() and the mouse was used to select the objects, then the returned rect has left < right and top < bottom. This rect is the Windows GDI screen coordinates of the picking rectangle. RhinoViewport.GetPickXform( pick_rect, pick_xform ) will calculate the picking transformation that was used. In all other cases, left=right=top=bottom=0;

public Rectangle PickRectangle()

Public Function PickRectangle As Rectangle