+ { DoShowRelativeItem(&wxTreeCtrl::GetPrevVisible, "previous visible"); }
+
+ void OnShowParent(wxCommandEvent& WXUNUSED(event))
+ { DoShowRelativeItem(&wxTreeCtrl::GetItemParent, "parent"); }
+ void OnShowPrevSibling(wxCommandEvent& WXUNUSED(event))
+ { DoShowRelativeItem(&wxTreeCtrl::GetPrevSibling, "previous sibling"); }
+ void OnShowNextSibling(wxCommandEvent& WXUNUSED(event))
+ { DoShowRelativeItem(&wxTreeCtrl::GetNextSibling, "next sibling"); }
+
+ void OnScrollTo(wxCommandEvent& event);