first init of 0.9

include/nana/system/dataexch.hpp

@@ -0,0 +1,38 @@
+/*
+ *	Data Exchanger Implementation
+ *	Copyright(C) 2003-2013 Jinhao(cnjinhao@hotmail.com)
+ *
+ *	Distributed under the Boost Software License, Version 1.0. 
+ *	(See accompanying file LICENSE_1_0.txt or copy at 
+ *	http://www.boost.org/LICENSE_1_0.txt)
+ *
+ *	@file:			nana/system/dataexch.hpp
+ *	@description:	An implementation of a data exchange mechanism through Windows Clipboard, X11 Selection. 
+ */
+
+#ifndef NANA_SYSTEM_DATAEXCH_HPP
+#define NANA_SYSTEM_DATAEXCH_HPP
+#include <nana/basic_types.hpp>
+
+namespace nana{ namespace system{
+            /// a data exchange mechanism through Windows Clipboard, X11 Selection.
+	class dataexch
+	{
+	public:
+		struct format
+		{
+			enum{ text, unicode, pixmap, end};
+		};
+
+		void set(const nana::char_t* text);
+		void set(const nana::string& text);
+		void get(nana::string& str);
+	private:
+		bool _m_set(unsigned type, const void* buf, std::size_t size);
+		void* _m_get(unsigned type, size_t& size);
+	};
+
+}//end namespace system
+}//end namespace nana
+
+#endif