(harmless) VC++ warning fixes

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@31478 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/event.h

@@ -509,6 +509,10 @@ private:
 };
 #endif
 
+#ifdef __VISUALC__
+    // 'this' : used in base member initializer list (for m_commandString)
+    #pragma warning(disable:4355)
+#endif
 
 class WXDLLIMPEXP_CORE wxCommandEvent : public wxEvent
 {
@@ -572,6 +576,10 @@ private:
     DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxCommandEvent)
 };
 
+#ifdef __VISUALC__
+    #pragma warning(default:4355)
+#endif
+
 #if WXWIN_COMPATIBILITY_2_4
 inline void wxCommandEventStringHelper::operator=(const wxString &str)
 {