diff --git a/include/nana/gui/widgets/listbox.hpp b/include/nana/gui/widgets/listbox.hpp
index 9ed36a89..9b29a7a7 100644
--- a/include/nana/gui/widgets/listbox.hpp
+++ b/include/nana/gui/widgets/listbox.hpp
@@ -17,8 +17,6 @@
 
 #ifndef NANA_GUI_WIDGETS_LISTBOX_HPP
 #define NANA_GUI_WIDGETS_LISTBOX_HPP
-#include <nana/push_ignore_diagnostic>
-
 #include "widget.hpp"
 #include "detail/inline_widget.hpp"
 #include <nana/pat/abstract_factory.hpp>
@@ -541,6 +539,8 @@ namespace nana
 				unsigned header_mouse_spliter_area_before{ 4 }; ///< def=2
 				unsigned header_mouse_spliter_area_after { 4 }; ///< def=3
 
+				void debug_print(const std::string &msg);
+
 			};
 		}
 	}//end namespace drawerbase
@@ -747,6 +747,4 @@ the nana::detail::basic_window member pointer scheme
 		void _m_erase_key(nana::detail::key_interface*);
 	};
 }//end namespace nana
-
-#include <nana/pop_ignore_diagnostic>
 #endif
diff --git a/source/gui/widgets/listbox.cpp b/source/gui/widgets/listbox.cpp
index 3fde21a8..8ec0e69d 100644
--- a/source/gui/widgets/listbox.cpp
+++ b/source/gui/widgets/listbox.cpp
@@ -28,13 +28,33 @@
 #include <algorithm>
 #include <nana/system/dataexch.hpp>
 #include <cassert>
+#include <iostream>  // for debug
 
 namespace nana
-{
+{ 
+	void debug(const std::string &msg, const rectangle&r)
+	{
+		std::cerr <<"\n" <<msg << "(" << r.x << ", " << r.y << " (" << r.width << ", " << r.height << ") )";
+	}
 	namespace drawerbase
 	{
 		namespace listbox
 		{
+			void scheme::debug_print(const std::string &msg)
+			{
+				
+				std::cerr << "\n " << msg;
+				std::cerr << "\n  max_header_width: " << max_header_width;  
+				std::cerr << "\n  min_header_width: " << min_header_width;  
+				std::cerr << "\n  suspension_width: " << suspension_width;
+				std::cerr << "\n  ext_w: " << ext_w;
+				std::cerr << "\n  header_height: " << header_height;
+				std::cerr << "\n  text_height: " << text_height;
+				std::cerr << "\n  item_height_ex: " << item_height_ex;
+				std::cerr << "\n  item_height: " << item_height;
+				std::cerr << "\n  header_mouse_spliter_area_before: " << header_mouse_spliter_area_before;
+				std::cerr << "\n  header_mouse_spliter_area_after: " << header_mouse_spliter_area_after;
+			}
 			//struct cell
 				cell::format::format(const ::nana::color& bgcolor, const ::nana::color& fgcolor)
 					: bgcolor{ bgcolor }, fgcolor{ fgcolor }
@@ -3321,7 +3341,11 @@ namespace nana
 
 				void trigger::attached(widget_reference widget, graph_reference graph)
 				{
+					essence_->scheme_ptr = &static_cast<::nana::listbox&>(widget).scheme();
+					essence_->scheme_ptr->debug_print("In trigger::attached with &static_cast<::nana::listbox&>(widget).scheme();");
 					essence_->scheme_ptr = static_cast<::nana::listbox::scheme_type*>(API::dev::get_scheme(widget));
+					essence_->scheme_ptr->debug_print("In trigger::attached with static_cast<::nana::listbox::scheme_type*>(API::dev::get_scheme(widget));");
+
 					essence_->graph = &graph;
 					typeface_changed(graph);
 
@@ -3348,10 +3372,18 @@ namespace nana
 
 					nana::rectangle r;
 
+					essence_->scheme_ptr->debug_print("From trigger::refresh(graph_reference) ");
+
 					if (essence_->header.visible() && essence_->rect_header(r))
 						drawer_header_->draw(r);
+
+					debug("Header: ", r);
+
 					if (essence_->rect_lister(r))
 						drawer_lister_->draw(r);
+
+					debug("Lister: ", r);
+
 					_m_draw_border();
 				}