In this paper,programmed by VBA based on iFIX, form was done,ODBC and ADO technologies were used to write and read Access database,in order to carry out similar function of electronic signature in iFIX,also,encrypt the database.

• 通过基于iFIX的VBA编程,制作窗体,利用ODBC和ADO技术读写Access数据库,实现类似iFIX中电子签名功能,并对Access数据库进行加密。