diff --git a/include/nana/gui/widgets/checkbox.hpp b/include/nana/gui/widgets/checkbox.hpp
index c0ebee4f..21b63cbd 100644
--- a/include/nana/gui/widgets/checkbox.hpp
+++ b/include/nana/gui/widgets/checkbox.hpp
@@ -88,8 +88,8 @@ namespace drawerbase
 		std::size_t checked() const;       ///< Retrieves the index of the checkbox which is checked.
 		std::size_t size() const;
 	private:
-		void _m_checked(const arg_click&);
-		void _m_destroy(const arg_destroy&);
+		//void _m_checked(const arg_click&);	//deprecated
+		//void _m_destroy(const arg_destroy&);	//deprecated
 	private:
 		std::vector<element_tag> ui_container_;
 	};
diff --git a/include/nana/gui/widgets/treebox.hpp b/include/nana/gui/widgets/treebox.hpp
index 5e317781..1878365a 100644
--- a/include/nana/gui/widgets/treebox.hpp
+++ b/include/nana/gui/widgets/treebox.hpp
@@ -167,7 +167,7 @@ namespace nana
 				void key_press(graph_reference, const arg_keyboard&)	override;
 				void key_char(graph_reference, const arg_keyboard&)	override;
 			private:
-				void _m_deal_adjust();
+				//void _m_deal_adjust();	//deprecated
 			private:
 				implement * const impl_;
 			}; //end class trigger
diff --git a/source/gui/dragger.cpp b/source/gui/dragger.cpp
index 5bb82baf..58233afc 100644
--- a/source/gui/dragger.cpp
+++ b/source/gui/dragger.cpp
@@ -65,7 +65,66 @@ namespace nana
 		{
 			trigger_t tg;
 			tg.wd = wd;
-			auto fn = std::bind(&dragger_impl_t::_m_trace, this, std::placeholders::_1);
+			//auto fn = std::bind(&dragger_impl_t::_m_trace, this, std::placeholders::_1);	//deprecated
+			auto fn = [this](const arg_mouse& arg)
+			{
+				switch (arg.evt_code)
+				{
+				case event_code::mouse_down:
+					dragging_ = true;
+					API::capture_window(arg.window_handle, true);
+					origin_ = API::cursor_position();
+					for (auto & t : targets_)
+					{
+						t.origin = API::window_position(t.wd);
+						window owner = API::get_owner_window(t.wd);
+						if (owner)
+							API::calc_screen_point(owner, t.origin);
+					}
+					break;
+				case event_code::mouse_move:
+					if (dragging_ && arg.left_button)
+					{
+						auto pos = API::cursor_position();
+						pos -= origin_;
+
+						for (auto & t : targets_)
+						{
+							if (API::is_window_zoomed(t.wd, true) == false)
+							{
+								auto owner = API::get_owner_window(t.wd);
+								auto wdps = t.origin;
+								if (owner)
+									API::calc_window_point(owner, wdps);
+
+								switch (t.move_direction)
+								{
+								case nana::arrange::horizontal:
+									wdps.x += pos.x;
+									break;
+								case nana::arrange::vertical:
+									wdps.y += pos.y;
+									break;
+								default:
+									wdps += pos;
+								}
+
+								if (!t.restrict_area.empty())
+									_m_check_restrict_area(wdps, API::window_size(t.wd), t.restrict_area);
+
+								API::move_window(t.wd, wdps);
+							}
+						}
+					}
+					break;
+				case event_code::mouse_up:
+					API::capture_window(arg.window_handle, false);
+					dragging_ = false;
+					break;
+				default:
+					break;
+				}
+			};
 			auto & events = API::events(wd);
 			tg.press	= events.mouse_down.connect(fn);
 			tg.over		= events.mouse_move.connect(fn);
@@ -117,8 +176,8 @@ namespace nana
 			if (pos.y < restr_area.y)
 				pos.y = restr_area.y;
 		}
-
-		void _m_trace(const arg_mouse& arg)
+		/*
+		void _m_trace(const arg_mouse& arg)	//deprecated
 		{
 			switch(arg.evt_code)
 			{
@@ -177,7 +236,7 @@ namespace nana
 				break;
 			}
 		}
-
+		*/
 	private:
 		bool dragging_;
 		nana::point origin_;
diff --git a/source/gui/tooltip.cpp b/source/gui/tooltip.cpp
index 04e6f258..17104556 100644
--- a/source/gui/tooltip.cpp
+++ b/source/gui/tooltip.cpp
@@ -147,7 +147,6 @@ namespace nana
 					timer_.reset();
 					this->close();
 				}
-
 			private:
 				timer timer_;
 				nana::label label_;
@@ -256,7 +255,8 @@ namespace nana
 						instance(true);
 				}
 			private:
-				void _m_enter(const arg_mouse& arg)
+				/*
+				void _m_enter(const arg_mouse& arg)	//deprecated
 				{
 					pair_t & pr = _m_get(arg.window_handle);
 					if(pr.second.size())
@@ -264,16 +264,21 @@ namespace nana
 						this->show(pr.second);
 					}
 				}
+				*/
 
-				void _m_leave(const arg_mouse&)
+				/*
+				void _m_leave(const arg_mouse&)	//deprecated
 				{
 					close();
 				}
+				*/
 
-				void _m_destroy(const arg_destroy& arg)
+				/*
+				void _m_destroy(const arg_destroy& arg)	//deprecated
 				{
 					_m_untip(arg.window_handle);
 				}
+				*/
 
 				void _m_untip(window wd)
 				{
@@ -303,15 +308,21 @@ namespace nana
 
 					auto & events = API::events(wd);
 					events.mouse_enter.connect([this](const arg_mouse& arg){
-						_m_enter(arg);
+						auto & pr = _m_get(arg.window_handle);
+						if (pr.second.size())
+							this->show(pr.second);
 					});
 
-					auto leave_fn = std::bind(&controller::_m_leave, this, std::placeholders::_1);
+					//auto leave_fn = std::bind(&controller::_m_leave, this, std::placeholders::_1);	//deprecated
+
+					auto leave_fn = [this]{
+						this->close();
+					};
 					events.mouse_leave.connect(leave_fn);
 					events.mouse_down.connect(leave_fn);
 
 					events.destroy.connect([this](const arg_destroy& arg){
-						_m_destroy(arg);
+						_m_untip(arg.window_handle);
 					});
 
 					cont_.emplace_back(wd, nana::string());
diff --git a/source/gui/widgets/checkbox.cpp b/source/gui/widgets/checkbox.cpp
index 582803cc..46fb8d63 100644
--- a/source/gui/widgets/checkbox.cpp
+++ b/source/gui/widgets/checkbox.cpp
@@ -213,8 +213,35 @@ namespace checkbox
 			element_tag el;
 
 			el.uiobj = &uiobj;
-			el.eh_checked = uiobj.events().click.connect_unignorable(std::bind(&radio_group::_m_checked, this, std::placeholders::_1), true);
-			el.eh_destroy = uiobj.events().destroy.connect_unignorable(std::bind(&radio_group::_m_destroy, this, std::placeholders::_1));
+			//el.eh_checked = uiobj.events().click.connect_unignorable(std::bind(&radio_group::_m_checked, this, std::placeholders::_1), true);	//deprecated
+			el.eh_checked = uiobj.events().click.connect_unignorable([this](const arg_click& arg)
+			{
+				for (auto & i : ui_container_)
+					i.uiobj->check(arg.window_handle == i.uiobj->handle());
+			}, true);
+
+			//el.eh_destroy = uiobj.events().destroy.connect_unignorable(std::bind(&radio_group::_m_destroy, this, std::placeholders::_1));	//deprecated
+			el.eh_destroy = uiobj.events().destroy.connect_unignorable([this](const arg_destroy& arg)
+			{
+				/*
+				auto i = std::find_if(ui_container_.begin(), ui_container_.end(), [&arg](decltype(*ui_container_.begin()) & x)
+				{
+					return (arg.window_handle == x.uiobj->handle());
+				});
+				if (i != ui_container_.end())
+					ui_container_.erase(i);
+				*/
+
+				for (auto i = ui_container_.begin(); i != ui_container_.end(); ++i)
+				{
+					if (arg.window_handle == i->uiobj->handle())
+					{
+						ui_container_.erase(i);
+						return;
+					}
+				}
+			});
+
 			ui_container_.push_back(el);
 		}
 
@@ -231,14 +258,16 @@ namespace checkbox
 		{
 			return ui_container_.size();
 		}
-
-		void radio_group::_m_checked(const arg_click& arg)
+		/*
+		void radio_group::_m_checked(const arg_click& arg)	//deprecated
 		{
 			for (auto & i : ui_container_)
 				i.uiobj->check(arg.window_handle == i.uiobj->handle());
 		}
+		*/
 
-		void radio_group::_m_destroy(const arg_destroy& arg)
+		/*
+		void radio_group::_m_destroy(const arg_destroy& arg)	//deprecated
 		{
 			auto i = std::find_if(ui_container_.begin(), ui_container_.end(), [&arg](decltype(*ui_container_.begin()) & x)
 					{
@@ -247,5 +276,6 @@ namespace checkbox
 			if(i != ui_container_.end())
 				ui_container_.erase(i);
 		}
+		*/
 	//end class radio_group
 }//end namespace nana
diff --git a/source/gui/widgets/combox.cpp b/source/gui/widgets/combox.cpp
index c6f3a32f..d89e36ef 100644
--- a/source/gui/widgets/combox.cpp
+++ b/source/gui/widgets/combox.cpp
@@ -172,10 +172,31 @@ namespace nana
 					{
 						editor_->editable(enb);
 
+						/*
 						if(enb)
 							editor_->ext_renderer().background = nullptr;
 						else
-							editor_->ext_renderer().background = std::bind(&drawer_impl::_m_draw_background, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3);
+							editor_->ext_renderer().background = std::bind(&drawer_impl::_m_draw_background, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3);	//deprecated
+						*/
+						if (!enb)
+						{
+							editor_->ext_renderer().background = [this](graph_reference graph, const ::nana::rectangle&, const ::nana::color&)
+							{
+								auto clr_from = colors::button_face_shadow_start;
+								auto clr_to = colors::button_face_shadow_end;
+
+								int pare_off_px = 1;
+								if (element_state::pressed == state_.button_state)
+								{
+									pare_off_px = 2;
+									std::swap(clr_from, clr_to);
+								}
+
+								graph.gradual_rectangle(::nana::rectangle(graph.size()).pare_off(pare_off_px), clr_from, clr_to, true);
+							};
+						}
+						else
+							editor_->ext_renderer().background = nullptr;
 
 						editor_->enable_background(enb);
 						editor_->enable_background_counterpart(!enb);
@@ -433,8 +454,8 @@ namespace nana
 						API::refresh_window(*widget_);
 					}
 				}
-
-				void _m_draw_background(graph_reference graph, const rectangle&, const ::nana::color&)
+				/*
+				void _m_draw_background(graph_reference graph, const rectangle&, const ::nana::color&)	//deprecated
 				{
 					auto clr_from = colors::button_face_shadow_start;
 					auto clr_to = colors::button_face_shadow_end;
@@ -448,7 +469,7 @@ namespace nana
 
 					graph.gradual_rectangle(::nana::rectangle(graph.size()).pare_off(pare_off_px), clr_from, clr_to, true);
 				}
-
+				*/
 				void _m_draw_push_button(bool enabled)
 				{
 					::nana::rectangle r{graph_->size()};
diff --git a/source/gui/widgets/tabbar.cpp b/source/gui/widgets/tabbar.cpp
index bbaabeeb..f66b9ca4 100644
--- a/source/gui/widgets/tabbar.cpp
+++ b/source/gui/widgets/tabbar.cpp
@@ -767,20 +767,28 @@ namespace nana
 				{
 					menulister_.clear();
 
-					auto f = std::bind(&layouter::_m_click_menulister, this, std::placeholders::_1);
+					//auto f = std::bind(&layouter::_m_click_menulister, this, std::placeholders::_1);	//deprecated
+					auto fn = [this](::nana::menu::item_proxy& ipx)
+					{
+						if (this->activate(ipx.index()))
+							API::refresh_window(basis_.wd);
+					};
+
 					for(auto & m : list_)
-						menulister_.append(m.text, f);
+						menulister_.append(m.text, fn);
 
 					auto r = toolbox_.area(toolbox_.ButtonList, basis_.graph->height());
 					r.x += _m_toolbox_pos();
 					menulister_.popup(basis_.wd, r.x, r.bottom());
 				}
 
-				void _m_click_menulister(nana::menu::item_proxy& ip)
+				/*
+				void _m_click_menulister(nana::menu::item_proxy& ip)	//deprecated
 				{
 					if(this->activate(ip.index()))
 						API::refresh_window(basis_.wd);
 				}
+				*/
 
 				//the begin pos of toolbox
 				int _m_toolbox_pos() const
diff --git a/source/gui/widgets/treebox.cpp b/source/gui/widgets/treebox.cpp
index 9362b243..d995a2fa 100644
--- a/source/gui/widgets/treebox.cpp
+++ b/source/gui/widgets/treebox.cpp
@@ -1491,7 +1491,60 @@ namespace nana
 					impl_->data.trigger_ptr = this;
 					impl_->data.renderer = nana::pat::cloneable<renderer_interface>(internal_renderer());
 					impl_->data.comp_placer = nana::pat::cloneable<compset_placer_interface>(internal_placer());
-					impl_->adjust.timer.elapse(std::bind(&trigger::_m_deal_adjust, this));
+					//impl_->adjust.timer.elapse(std::bind(&trigger::_m_deal_adjust, this));	//deprecated
+					impl_->adjust.timer.elapse([this]
+					{
+						auto & adjust = impl_->adjust;
+						if (adjust.scroll_timestamp && (nana::system::timestamp() - adjust.scroll_timestamp >= 500))
+						{
+							if (0 == adjust.offset_x_adjust)
+							{
+								if (!impl_->make_adjust(adjust.node ? adjust.node : impl_->shape.first, 1))
+								{
+									adjust.offset_x_adjust = 0;
+									adjust.node = nullptr;
+									adjust.scroll_timestamp = 0;
+									adjust.timer.stop();
+									return;
+								}
+							}
+
+							auto & shape = impl_->shape;
+							const int delta = 5;
+							int old = shape.offset_x;
+
+							if (shape.offset_x < adjust.offset_x_adjust)
+							{
+								shape.offset_x += delta;
+								if (shape.offset_x > adjust.offset_x_adjust)
+									shape.offset_x = adjust.offset_x_adjust;
+							}
+							else if (shape.offset_x > adjust.offset_x_adjust)
+							{
+								shape.offset_x -= delta;
+								if (shape.offset_x < adjust.offset_x_adjust)
+									shape.offset_x = adjust.offset_x_adjust;
+							}
+
+							impl_->draw(false);
+							API::update_window(impl_->data.widget_ptr->handle());
+
+							if (impl_->node_state.tooltip)
+							{
+								nana::point pos = impl_->node_state.tooltip->pos();
+								impl_->node_state.tooltip->move(pos.x - shape.offset_x + old, pos.y);
+							}
+
+							if (shape.offset_x == adjust.offset_x_adjust)
+							{
+								adjust.offset_x_adjust = 0;
+								adjust.node = nullptr;
+								adjust.scroll_timestamp = 0;
+								adjust.timer.stop();
+							}
+						}
+					});
+
 					impl_->adjust.timer.interval(16);
 					impl_->adjust.timer.start();
 				}
@@ -2099,7 +2152,8 @@ namespace nana
 					}
 				}
 
-				void trigger::_m_deal_adjust()
+				/*
+				void trigger::_m_deal_adjust()	//deprecated
 				{
 					auto & adjust = impl_->adjust;
 					if(adjust.scroll_timestamp && (nana::system::timestamp() - adjust.scroll_timestamp >= 500))
@@ -2151,6 +2205,7 @@ namespace nana
 						}
 					}
 				}
+				//*/
 			//end class trigger
 		}//end namespace treebox
 	}//end namespace drawerbase