对于初期学习OPCCLIENT的编写非常有帮助,get preparation for the opcclient programming

用VC编写OPC客户端开发。很有用处。很有用处。-VC with the preparation of the development of OPC client. Very useful. Very useful.

VC++（MFC）实现的OPC客户端程序，可以用VC6.0以上版本运行，OPC同步和异步读写功能-VC++ (MFC) to achieve an OPC client program, you can use VC6.0 versions running, OPC synchronous and asynchronous read and write capabilities