->m_bAutoDelete = bAutoDelete;

……



       if (lpszPathName == NULL)

    //当是新建的时候

       {

              SetDefaultTitle(pDocument);



              // avoid creating temporary compound file when starting up invisible

              if (!bMakeVisible)

                     pDocument->m_bEmbedded = TRUE;



              if (!pDocument->OnNewDocument())

              {

                     pFrame->DestroyWindow();

                     return NULL;

              }



              m_nUntitledCount++;

       }

       else

       {

              // 打开一个已经存在的文件

              CWaitCursor wait;

              if (!pDocument->OnOpenDocument(lpszPathName))

              {

                     // user has be alerted to what failed in OnOpenDocument

                     TRACE0("CDocument::OnOpenDocument returned FALSE.\n");

                     pFrame->DestroyWindow();

                     return NULL;

              }

              pDocument->SetPathName(lpszPathName);

       }



       InitialUpdateFrame(pFrame, pDocument, bMakeVisible);

     &nbs