int Append(const wxString& item, wxClientData *clientData)
{ int n = DoAppend(item); SetClientObject(n, clientData); return n; }
int Append(const wxString& item, wxClientData *clientData)
{ int n = DoAppend(item); SetClientObject(n, clientData); return n; }
virtual void SetString(int n, const wxString& s) = 0;
virtual int FindString(const wxString& s) const = 0;
virtual void SetString(int n, const wxString& s) = 0;
virtual int FindString(const wxString& s) const = 0;