- wxConfigBase(const wxString& appName = "", const wxString& vendorName = "",
- const wxString& localFilename = "", const wxString& globalFilename = "",
+ wxConfigBase(const wxString& appName = wxEmptyString, const wxString& vendorName = wxEmptyString,
+ const wxString& localFilename = wxEmptyString, const wxString& globalFilename = wxEmptyString,