Added more compat. functions for wxGrid so grid sample compiles;

fixed regtest compilation prob. (but still crashes on exit); fixed
tab sample compile problem.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4182 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/regtest/regtest.cpp

@@ -529,7 +529,7 @@ void RegTreeCtrl::OnChar(wxKeyEvent& event)
   if ( event.KeyCode() == WXK_DELETE )
     DeleteSelected();
   else
-    wxTreeCtrl::OnChar(event);
+    event.Skip();
 }
 
 void RegTreeCtrl::OnSelChanged(wxTreeEvent& event)