# File locana/l_scrollbar.rb, line 299
   def prepare_object(move_obj=nil)
      if (self.otype == :horizontal)
         return nil if (owner.w == 0) # we are not yet ready to prepare

         @w = l_determine_w(owner) if (!@w || @w == 0)
         @h = Lscrollbar_button.height() if (!@h || @h == 0)
         @x = l_determine_x(owner) if (!@x)
         @y = 0
      else
         return nil if (owner.h == 0) # we are not yet ready to prepare

         @w = Lscrollbar_button.width() if (!@w || @w == 0)
         @h = l_determine_h(owner) if (!@h || @h == 0)
         @y = l_determine_y(owner) if (!@y)
         @x = 0
      end
   end