undisable many warnings for VC++ in defs.h and fixed several thousands of them in the sources

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@22222 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/choice.h

@@ -37,9 +37,11 @@ WXDLLEXPORT_DATA(extern const wxChar*) wxChoiceNameStr;
 class WXDLLEXPORT wxChoiceBase : public wxControlWithItems
 {
 public:
-    // all generic methods are in wxControlWithItems
+    wxChoiceBase() { }
     virtual ~wxChoiceBase();
 
+    // all generic methods are in wxControlWithItems
+
     // single selection logic
     virtual void SetSelection(int n) = 0;
     virtual bool SetStringSelection(const wxString& s);
@@ -54,6 +56,9 @@ public:
 
     // emulate selecting the item event.GetInt()
     void Command(wxCommandEvent& event);
+
+private:
+    DECLARE_NO_COPY_CLASS(wxChoiceBase)
 };
 
 // ----------------------------------------------------------------------------