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diff --git a/src/w32dlib/common.h b/src/w32dlib/common.h
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+//  w32dlib - Win32 Dialog Helpers
+//
+//  Copyright (C) 2005  Ian Cowburn (ianc@noddybox.demon.co.uk)
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation; either version 2 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, write to the Free Software
+//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+//
+//  -------------------------------------------------------------------------
+//
+#ifndef W32DLIB_COMMON_H
+
+#define W32DLIB_COMMON_H	"$Id$"
+
+#include "w32dlib/base.h"
+
+namespace W32DLib
+{
+
+    /// \brief The Common class.
+    ///
+    /// This class provides common dialogs and useful routines.
+    ///
+    class Common
+    {
+    public:
+
+	/// \brief Displays a message box.
+	///
+	/// \param parent Parent window (NULL for none)
+	/// \param msg The message to display.
+	///
+	static void		Message(HWND parent, const char *msg);
+
+
+	/// \brief Displays an error message box.
+	///
+	/// \param parent Parent window (NULL for none)
+	/// \param msg The error message to display.
+	///
+	static void		Error(HWND parent, const char *msg);
+
+
+	/// \brief Displays a Yes/No message box.
+	///
+	/// \param parent Parent window (NULL for none)
+	/// \param msg The message to display.
+	/// \return True if the user selects Yes.
+	///
+	static bool		Query(HWND parent, const char *msg);
+
+
+	/// \brief Requests a file to open.
+	///
+	/// \param filter The file selector filter.
+	/// \return The path, or an empty string if non selected.
+	///
+	static std::string	OpenFile(const char *filter);
+
+
+	/// \brief Requests a file to save.
+	///
+	/// \param filter The file selector filter.
+	/// \return The path, or an empty string if non selected.
+	///
+	static std::string	SaveFile(const char *filter);
+
+
+	/// \brief Selects a directory
+	///
+	/// \return The path, or an empty string if non selected.
+	///
+	static std::string	SelectDirectory();
+
+
+	/// \brief Returns the last error as a readable string.
+	///
+	/// \return The error message
+	///
+	static std::string	GetOSError();
+
+
+	/// \brief Get the application HINSTANCE.
+	///
+	/// \return The HINSTANCE
+	///
+	static HINSTANCE	GetInstance();
+
+
+    private:
+    	Common();
+
+    };	// class Common
+
+};	// namespace w32dlib
+
+#endif	// W32DLIB_COMMON_H
+
+
+// END OF FILE