-wxFileSelector(const wxChar *message = wxFileSelectorPromptStr,
- const wxChar *default_path = NULL,
- const wxChar *default_filename = NULL,
- const wxChar *default_extension = NULL,
- const wxChar *wildcard = wxFileSelectorDefaultWildcardStr,
+wxFileSelector(const wxString& message = wxFileSelectorPromptStr,
+ const wxString& default_path = wxEmptyString,
+ const wxString& default_filename = wxEmptyString,
+ const wxString& default_extension = wxEmptyString,
+ const wxString& wildcard = wxFileSelectorDefaultWildcardStr,