Qt4: Handle saving/loading message history

win/Qt4/qt4bind.h

@@ -80,7 +80,6 @@ public:
 
         static char *qt_getmsghistory(BOOLEAN_P init);
         static void qt_putmsghistory(const char *msg, BOOLEAN_P is_restoring);
-        static void qt_putmsghistory(const std::string& msg, BOOLEAN_P is_restoring);
 
 	static void qt_outrip(winid wid, int how, time_t when);
 	static int qt_kbhit();
@@ -89,6 +88,10 @@ public:
 
 private:
 	virtual bool notify(QObject *receiver, QEvent *event);
+
+        static QStringList *msgs_strings;
+        static boolean msgs_saved;
+        static boolean msgs_initd;
 };
 
 } // namespace nethack_qt4