add event stop_propagation

source/gui/widgets/treebox.cpp

@@ -1,7 +1,7 @@
 /*
  *	A Treebox Implementation
  *	Nana C++ Library(http://www.nanapro.org)
- *	Copyright(C) 2003-2014 Jinhao(cnjinhao@hotmail.com)
+ *	Copyright(C) 2003-2015 Jinhao(cnjinhao@hotmail.com)
  *
  *	Distributed under the Boost Software License, Version 1.0.
  *	(See accompanying file LICENSE_1_0.txt or copy at
@@ -18,6 +18,10 @@
 
 namespace nana
 {
+	arg_treebox::arg_treebox(treebox& wdg, drawerbase::treebox::item_proxy& m, bool op)
+		: widget{ wdg }, item{ m }, operated{op}
+	{}
+
 	namespace drawerbase
 	{
 		//Here defines some function objects