在ListCtrl中将多选框变为单选框的方法

        在ListCtrl中将多选框变为单选框的方法:

        假定ID为IDC_LIST1
        增加:
        ON_NOTIFY(LVN_ITEMCHANGED, IDC_LIST1, OnItemchangedList1)

        函数实现:
        void CTestDlg::OnItemchangedList1(NMHDR* pNMHDR, LRESULT* pResult)
        {
                NM_LISTVIEW* pNMListView = (NM_LISTVIEW*)pNMHDR;
                // TODO: Add your control notification handler code here
                *pResult = 0;
   
                static int lSelectItem=-1;
                if (pNMListView->uOldState == 0 && pNMListView->uNewState == 0)
                        return;    // No change

                BOOL bPrevState = (BOOL)(((pNMListView->uOldState & LVIS_STATEIMAGEMASK)>>12)-1);   // Old check box state
                if (bPrevState < 0)    // On startup there's no previous state
                        bPrevState = 0; // so assign as false (unchecked)

                // New check box state
                BOOL bChecked=(BOOL)(((pNMListView->uNewState & LVIS_STATEIMAGEMASK)>>12)-1);  
                if (bChecked < 0) // On non-checkbox notifications assume false
                        bChecked = 0;

                if (bPrevState == bChecked) // No change in check box
                        return;
   
                if(bChecked)
                {
                        if(lSelectItem!=-1)
                        {
                                //already checked, reset the last checked item
                                m_list.SetCheck(lSelectItem,FALSE);
                        }
                        lSelectItem=pNMListView->iItem;
                }
                else
                {
                        //UnCheck,reset lSelectItem
                        lSelectItem=-1;
                }
        }