TCP通信在PowerBuilder中的应用

TCP Communication Application in Power Builder

Power Builder是出色的数据库开发工具,但Power Builder中未提供TCP通信控件,所以在Power Builder中实现TCP通信存在着一定的难度.本文对如何在Power Builder中实现TCP通信进行了一定的探讨:TCP编程原理:Windows Sockets的异步选择机制;如何利用异步选择机制构造外部动态连接库。协同一起完成TCP通信,并附上了一个客户服务器模式的实例程序.

Power Builder is an excellent tool for exploiting database. But Power Builder does not provide TCP communicating control. So. it's difficult to realize TCP communication in Power Builder. This article discusses how to realize TCP communication in Power Builder, The article emphasizes these faces: TCP programming principle, asynchronous selective mechanism for Windows Sockets,now to utilize asynchronous selective mechanism for constructing exterior dynamic link libraries, and cooperating with Power Builder to complete TCP communication. The article encloses an example program in c/s mode.