diff --git a/include/nana/gui/detail/general_events.hpp b/include/nana/gui/detail/general_events.hpp
index 9ea5140e..507416bb 100644
--- a/include/nana/gui/detail/general_events.hpp
+++ b/include/nana/gui/detail/general_events.hpp
@@ -425,6 +425,8 @@ namespace nana
 		event_code evt_code; ///< 
 		::nana::window window_handle;  ///< A handle to the event window
 		::nana::point pos;   ///< cursor position in the event window
+		::nana::mouse button;	///< indicates a button which triggers the event
+
 		bool left_button;    ///< mouse left button is pressed?
 		bool mid_button;     ///< mouse middle button is pressed?
 		bool right_button;   ///< mouse right button is pressed?
diff --git a/include/nana/gui/widgets/button.hpp b/include/nana/gui/widgets/button.hpp
index e57f3b12..014a29f7 100644
--- a/include/nana/gui/widgets/button.hpp
+++ b/include/nana/gui/widgets/button.hpp
@@ -15,7 +15,6 @@
 #include "widget.hpp"
 #include <nana/gui/element.hpp>
 
-
 namespace nana{
 	namespace drawerbase
 	{
diff --git a/source/gui/detail/linux_X11/bedrock.cpp b/source/gui/detail/linux_X11/bedrock.cpp
index cedd1a41..f541f13a 100644
--- a/source/gui/detail/linux_X11/bedrock.cpp
+++ b/source/gui/detail/linux_X11/bedrock.cpp
@@ -442,62 +442,53 @@ namespace detail
 	void assign_arg(arg_mouse& arg, basic_window* wd, unsigned msg, const XEvent& evt)
 	{
 		arg.window_handle = reinterpret_cast<window>(wd);
+		arg.button = ::nana::mouse::any_button;
+
+		int mask_state == 0;
 		if (ButtonPress == msg || ButtonRelease == msg)
 		{
+			mask_state = evt.xbutton.state;
 			if (evt.xbutton.button != Button4 && evt.xbutton.button != Button5)
 			{
 				arg.evt_code = (ButtonPress == msg ? event_code::mouse_down : event_code::mouse_up);
 				arg.pos.x = evt.xbutton.x - wd->pos_root.x;
 				arg.pos.y = evt.xbutton.y - wd->pos_root.y;
 
-				arg.left_button = arg.mid_button = arg.right_button = false;
-				arg.shift = arg.ctrl = false;
 				switch (evt.xbutton.button)
 				{
 				case Button1:
-					arg.left_button = true;
+					arg.button = ::nana::mouse::left_button;
 					break;
 				case Button2:
-					arg.mid_button = true;
+					arg.button = ::nana::mouse::middle_button;
 					break;
 				case Button3:
-					arg.right_button = true;
+					arg.button = ::nana::mouse::right_button;
 					break;
 				}
 			}
 		}
 		else if (msg == MotionNotify)
 		{
+			mask_state = evt.xmotion.state;
 			arg.evt_code = event_code::mouse_move;
 			arg.pos.x = evt.xmotion.x - wd->pos_root.x;
 			arg.pos.y = evt.xmotion.y - wd->pos_root.y;
-			arg.left_button = arg.mid_button = arg.right_button = false;
-
-			arg.shift = evt.xmotion.state & ShiftMask;
-			arg.ctrl = evt.xmotion.state & ControlMask;
-			if (evt.xmotion.state & Button1Mask)
-				arg.left_button = true;
-			else if (evt.xmotion.state & Button2Mask)
-				arg.right_button = true;
-			else if (evt.xmotion.state & Button3Mask)
-				arg.mid_button = true;
 		}
 		else if (EnterNotify == msg)
 		{
+			mask_state = evt.xcrossing.state;
 			arg.evt_code = event_code::mouse_enter;
 			arg.pos.x = evt.xcrossing.x - wd->pos_root.x;
 			arg.pos.y = evt.xcrossing.y - wd->pos_root.y;
-			arg.left_button = arg.mid_button = arg.right_button = false;
-
-			arg.shift = evt.xcrossing.state & ShiftMask;
-			arg.ctrl = evt.xcrossing.state & ControlMask;
-			if (evt.xcrossing.state & Button1Mask)
-				arg.left_button = true;
-			else if (evt.xcrossing.state & Button2Mask)
-				arg.right_button = true;
-			else if (evt.xcrossing.state & Button3Mask)
-				arg.mid_button = true;
 		}
+
+		arg.left_button		= (Button1Mask & state);
+		arg.right_button	= (Button2Mask & state);
+		arg.mid_button		= (Button3Mask & state);
+		arg.shift	= (ShiftMask & state);
+		arg.ctrl	= (ControlMask & state);
+
 	}
 
 	void assign_arg(arg_focus& arg, basic_window* wd, native_window_type recv, bool getting)
@@ -780,7 +771,7 @@ namespace detail
 						bool fire_click = false;
 						if(msgwnd == pressed_wd)
 						{
-							if(msgwnd->flags.enabled && hit)
+							if((arg.button == ::nana::mouse::left_button) && hit)
 							{
 								msgwnd->flags.action = mouse_action::over;
 								arg.evt_code = event_code::click;
diff --git a/source/gui/detail/win32/bedrock.cpp b/source/gui/detail/win32/bedrock.cpp
index 78609ac0..5475b227 100644
--- a/source/gui/detail/win32/bedrock.cpp
+++ b/source/gui/detail/win32/bedrock.cpp
@@ -485,46 +485,63 @@ namespace detail
 	void assign_arg(nana::arg_mouse& arg, basic_window* wd, unsigned msg, const parameter_decoder& pmdec)
 	{
 		arg.window_handle = reinterpret_cast<window>(wd);
-		//event code
+
+		bool set_key_state = true;
 		switch (msg)
 		{
-		case WM_LBUTTONUP: case WM_RBUTTONUP: case WM_MBUTTONUP:
+		case WM_LBUTTONDOWN:
+			arg.button = ::nana::mouse::left_button;
+			arg.evt_code = event_code::mouse_down;
+			break;
+		case WM_RBUTTONDOWN:
+			arg.button = ::nana::mouse::right_button;
+			arg.evt_code = event_code::mouse_down;
+			break;
+		case WM_MBUTTONDOWN:
+			arg.button = ::nana::mouse::middle_button;
+			arg.evt_code = event_code::mouse_down;
+			break;
+		case WM_LBUTTONUP:
+			arg.button = ::nana::mouse::left_button;
 			arg.evt_code = event_code::mouse_up;
 			break;
-		case WM_LBUTTONDBLCLK: case WM_MBUTTONDBLCLK: case WM_RBUTTONDBLCLK:
+		case WM_RBUTTONUP:
+			arg.button = ::nana::mouse::right_button;
+			arg.evt_code = event_code::mouse_up;
+			break;
+		case WM_MBUTTONUP:
+			arg.button = ::nana::mouse::middle_button;
+			arg.evt_code = event_code::mouse_up;
+			break;
+		case WM_LBUTTONDBLCLK:
+			arg.button = ::nana::mouse::left_button;
+			arg.evt_code = (wd->flags.dbl_click ? event_code::dbl_click : event_code::mouse_down);
+			break;
+		case WM_MBUTTONDBLCLK:
+			arg.button = ::nana::mouse::middle_button;
+			arg.evt_code = (wd->flags.dbl_click ? event_code::dbl_click : event_code::mouse_down);
+			break;
+		case WM_RBUTTONDBLCLK:
+			arg.button = ::nana::mouse::right_button;
 			arg.evt_code = (wd->flags.dbl_click ? event_code::dbl_click : event_code::mouse_down);
 			break;
 		case WM_MOUSEMOVE:
+			arg.button = ::nana::mouse::any_button;
 			arg.evt_code = event_code::mouse_move;
 			break;
+		default:
+			set_key_state = false;
 		}
 
-		//event arguments
-		switch (msg)
+		if (set_key_state)
 		{
-		case WM_LBUTTONDOWN: case WM_RBUTTONDOWN: case WM_MBUTTONDOWN:
-			arg.evt_code = event_code::mouse_down;
-		case WM_LBUTTONUP: case WM_RBUTTONUP: case WM_MBUTTONUP:
-		case WM_LBUTTONDBLCLK: case WM_MBUTTONDBLCLK: case WM_RBUTTONDBLCLK:
-		case WM_MOUSEMOVE:
 			arg.pos.x = pmdec.mouse.x - wd->pos_root.x;
 			arg.pos.y = pmdec.mouse.y - wd->pos_root.y;
 			arg.shift = pmdec.mouse.button.shift;
 			arg.ctrl = pmdec.mouse.button.ctrl;
-
-			switch (msg)
-			{
-			case WM_LBUTTONUP: case WM_RBUTTONUP: case WM_MBUTTONUP:
-				arg.left_button = (WM_LBUTTONUP == msg);
-				arg.right_button = (WM_RBUTTONUP == msg);
-				arg.mid_button = (WM_MBUTTONUP == msg);
-				break;
-			default:
-				arg.left_button = pmdec.mouse.button.left;
-				arg.mid_button = pmdec.mouse.button.middle;
-				arg.right_button = pmdec.mouse.button.right;
-			}
-			break;
+			arg.left_button = pmdec.mouse.button.left;
+			arg.mid_button = pmdec.mouse.button.middle;
+			arg.right_button = pmdec.mouse.button.right;
 		}
 	}
 
@@ -988,7 +1005,7 @@ namespace detail
 					if (msgwnd->dimension.is_hit(arg.pos))
 					{
 						msgwnd->flags.action = mouse_action::over;
-						if ((msgwnd == pressed_wd) && msgwnd->flags.enabled)
+						if (::nana::mouse::left_button == arg.button)
 						{
 							arg.evt_code = event_code::click;
 							emit_drawer(&drawer::click, msgwnd, arg, &context);
diff --git a/source/gui/widgets/button.cpp b/source/gui/widgets/button.cpp
index 9a4c676e..fd007531 100644
--- a/source/gui/widgets/button.cpp
+++ b/source/gui/widgets/button.cpp
@@ -17,6 +17,7 @@ namespace nana{	namespace drawerbase
 {
 	namespace button
 	{
+
 		//trigger
 		//@brief: draw the button
 		trigger::trigger()
@@ -118,8 +119,11 @@ namespace nana{	namespace drawerbase
 			API::lazy_refresh();
 		}
 
-		void trigger::mouse_down(graph_reference graph, const arg_mouse&)
+		void trigger::mouse_down(graph_reference graph, const arg_mouse& arg)
 		{
+			if (::nana::mouse::left_button != arg.button)
+				return;
+
 			attr_.e_state = element_state::pressed;
 			attr_.keep_pressed = true;
 
@@ -128,8 +132,11 @@ namespace nana{	namespace drawerbase
 			API::lazy_refresh();
 		}
 
-		void trigger::mouse_up(graph_reference graph, const arg_mouse&)
+		void trigger::mouse_up(graph_reference graph, const arg_mouse& arg)
 		{
+			if (::nana::mouse::left_button != arg.button)
+				return;
+
 			API::capture_window(*wdg_, false);
 			attr_.keep_pressed = false;
 			if(attr_.enable_pushed && (false == attr_.pushed))
@@ -340,6 +347,7 @@ namespace nana{	namespace drawerbase
 			arg.evt_code = event_code::click;
 			arg.window_handle = wdg_->handle();
 			arg.ctrl = arg.shift = false;
+			arg.button = ::nana::mouse::left_button;
 			arg.mid_button = arg.right_button = false;
 			arg.left_button = true;
 			arg.pos.x = arg.pos.y = 1;