+ /**
+ Returns the path of the file currently selected in dialog.
+
+ Notice that this file is not necessarily going to be accepted by the
+ user, so calling this function mostly makes sense from an update UI
+ event handler of a custom file dialog extra control to update its state
+ depending on the currently selected file.
+
+ Currently this function is fully implemented under GTK and MSW and
+ always returns an empty string elsewhere.
+
+ @since 2.9.5
+
+ @return The path of the currently selected file or an empty string if
+ nothing is selected.
+
+ @see SetExtraControlCreator()
+ */
+ virtual wxString GetCurrentlySelectedFilename() const;
+