# File tk/lib/tkextlib/tkDND/tkdnd.rb, line 60
      def self.version
        begin
          TkPackage.require('tkdnd')
        rescue
          ''
        end
      end

# File tk/lib/tkextlib/tkDND/tkdnd.rb, line 104
      def dnd_bindsource(type, cmd=Proc.new, prior=None)
        tk_call('dnd', 'bindsource', @path, type, cmd, prior)
        self
      end

# File tk/lib/tkextlib/tkDND/tkdnd.rb, line 96
      def dnd_bindsource_info(type=nil)
        if type
          procedure(tk_call('dnd', 'bindsource', @path, type))
        else
          simplelist(tk_call('dnd', 'bindsource', @path))
        end
      end

# File tk/lib/tkextlib/tkDND/tkdnd.rb, line 78
      def dnd_bindtarget(type, event, cmd=Proc.new, prior=50, *args)
        event = tk_event_sequence(event)
        if prior.kind_of?(Numeric)
          tk_call('dnd', 'bindtarget', @path, type, event, 
                  install_bind_for_event_class(DND_Subst, cmd, *args), 
                  prior)
        else
          tk_call('dnd', 'bindtarget', @path, type, event, 
                  install_bind_for_event_class(DND_Subst, cmd, prior, *args))
        end
        self
      end

# File tk/lib/tkextlib/tkDND/tkdnd.rb, line 68
      def dnd_bindtarget_info(type=nil, event=nil)
        if event
          procedure(tk_call('dnd', 'bindtarget', @path, type, event))
        elsif type
          procedure(tk_call('dnd', 'bindtarget', @path, type))
        else
          simplelist(tk_call('dnd', 'bindtarget', @path))
        end
      end

# File tk/lib/tkextlib/tkDND/tkdnd.rb, line 109
      def dnd_clearsource()
        tk_call('dnd', 'clearsource', @path)
        self
      end

# File tk/lib/tkextlib/tkDND/tkdnd.rb, line 91
      def dnd_cleartarget
        tk_call('dnd', 'cleartarget', @path)
        self
      end

# File tk/lib/tkextlib/tkDND/tkdnd.rb, line 114
      def dnd_drag(keys=nil)
        tk_call('dnd', 'drag', @path, *hash_kv(keys))
        self
      end