Handle WM_GETDLGCODE in wxTextCtrl for wxUniv too

include/wx/univ/textctrl.h

@@ -451,6 +451,12 @@ protected:
     bool DoCut();
     bool DoPaste();
 
+#ifdef __WXMSW__
+public:
+    // override MSWHandleMessage to process WM_GETDLGCODE
+    bool MSWHandleMessage(WXLRESULT *result, WXUINT message, WXWPARAM wParam, WXLPARAM lParam);
+#endif // __WXMSW__
+
 private:
     // all these methods are for multiline text controls only