--- a/QTfrontend/util/MessageDialog.h	Wed Mar 27 14:20:34 2013 +0100
+++ b/QTfrontend/util/MessageDialog.h	Thu Mar 28 17:41:40 2013 +0100
@@ -29,7 +29,15 @@
         static int ShowFatalMessage(const QString & msg, QWidget * parent = 0);
         static int ShowErrorMessage(const QString & msg, QWidget * parent = 0);
         static int ShowInfoMessage(const QString & msg, QWidget * parent = 0);
-        static int ShowMessage(const QString & title = 0, const QString & msg, QMessageBox::Icon icon = QMessageBox::NoIcon, QWidget * parent = 0);
+        /**
+         * @brief Displays a message.
+         * @param title message title or <code>NULL</code> if no/default title
+         * @param msg message to display
+         * @param icon (optional) icon to be displayed next to the message
+         * @param parent parent Widget
+         * @return a QMessageBox::StandardButton value indicating which button was clicked
+         */
+        static int ShowMessage(const QString & title, const QString & msg, QMessageBox::Icon icon = QMessageBox::NoIcon, QWidget * parent = 0);
 };
 
 #endif