+ child = wxGetPreviousButtonInGroup((wxRadioButton*)m_winLastFocused);
+ if ( !child )
+ {
+ // no previous button in group, set it to the last button
+ child = wxGetLastButtonInGroup((wxRadioButton*)m_winLastFocused);
+ }
+ }
+
+ if ( child == m_winLastFocused )
+ {
+ // must be a group consisting of only one button therefore
+ // no need to send a navigation event
+ event.Skip(false);
+ return;