if ((found = wxPyCBH_findCallback(m_myInst, "OnCompareItems"))) {
PyObject *o1 = wxPyConstructObject((void*)&item1, wxT("wxTreeItemId"), 0);
PyObject *o2 = wxPyConstructObject((void*)&item2, wxT("wxTreeItemId"), 0);
if ((found = wxPyCBH_findCallback(m_myInst, "OnCompareItems"))) {
PyObject *o1 = wxPyConstructObject((void*)&item1, wxT("wxTreeItemId"), 0);
PyObject *o2 = wxPyConstructObject((void*)&item2, wxT("wxTreeItemId"), 0);