+bool loadLyXFile(Buffer *, support::FileName const & filename);
+
+/**
+ * Checks and loads a LyX file \param filename.
+ * \retval the newly created \c Buffer pointer if successful or 0.
+ * \retval 0 if the \c Buffer could not be created.
+ */
+Buffer * checkAndLoadLyXFile(support::FileName const & filename);