CheckThisBoxOn(hDlg, IDS_NOBLOCK);

           temporary_option = 1L;

           break;

       case IDOK:

           /* 用户已完成对设置的修改 */

           buffer_len = GetDlgItemInt(hDlg, IDS_BUFFLEN, NULL, 0);

           if (buffer_len == 0 || buffer_len > 8192) {

              MessageBox(hOurWnd, "Buffer length must be between 1 and 8K",

                        "Settings()",