如何響應BCG的屬性清單(CBCGPPropList)改變的事件？

afx_msg LRESULT OnProChanged(WPARAM uProListID,LPARAM pPro);
BEGIN_MESSAGE_MAP(CPlotSingleDlg, CAcUiDialog)
 ON_REGISTERED_MESSAGE(BCGM_PROPERTY_CHANGED, OnProChanged)
 END_MESSAGE_MAP()LRESULT CPlotSingleDlg::OnProChanged(WPARAM uProListID,LPARAM pPro)
 {
   return 0 ;
 }