void CRichSyntaxView::OperTab(){
        CRichEditCtrl& r = GetRichEditCtrl();
        CString cLine;
        CHARRANGE ccr;
        int iSize=0;

        r.GetSel(ccr);
        cLine= r.GetSelText();
        iSize = cLine.GetLength();
        
        AfxMessageBox(cLine);
}