afx_msg void OnMergeCell();

    afx_msg void OnContextMenu(CWnd* /*pWnd*/, CPoint /*point*/);

ON_COMMAND(IDM_MergeCell, OnMergeCell)//IDM_MergeCell在resource.h添加一下就可以了

ON_WM_CONTEXTMENU()

void CAttendance_Guest_Day_View::OnMergeCell()

{

    CCellRange cellRange = m_HFlexGrid.GetSelectedCellRange();

    m_HFlexGrid.MergeCells(cellRange);

    m_HFlexGrid.Refresh();

}

void CAttendance_Guest_Day_View::OnContextMenu(CWnd* pWnd, CPoint point)

{

    ClientToScreen(&point);

    CRect rectCustom;

    GetDlgItem(IDC_CUSTOM1)->GetWindowRect(&rectCustom);

    if ((point.x > rectCustom.left && point.x < rectCustom.right) && (point.y > rectCustom.top && point.y < rectCustom.bottom) ){

        POINT pointOfCustom;

        CMenu menu;

        GetCursorPos(&pointOfCustom);

        menu.CreatePopupMenu();

        menu.AppendMenu(MF_STRING, IDM_MergeCell, _T("合并单元格"));

        menu.TrackPopupMenu(, pointOfCustom.x, pointOfCustom.y, this);

    }

}