网络黑板的设计与实现

The design and implementation of network blackboard

为方便用户间可视图形、文字的信息传输,设计了网络黑板系统。网络黑板从功能上是指在网络中建立一个可视的信息共享机制,网络用户可通过它相互交流,实现信息的实时通信。系统是基于TCP IP协议的,采用CLIENT SERVER模式的网络通讯系统。采用WinSock控件连接客户端和服务器端来实现通信,以PICTUREBOX控件作为黑板主体,通过信息编码及编程实现双机 多机之间的可视图形、文字信息的可控实时传输。

In order to realize visual graphic and character info transmission between users, the author designs this network blackboard system. Network blackboard realizes its function by the way of establishing a visual info-share mechanism. Net users could realize intercommunion and info communication in real time through it. This system is a network communication system which is based on the TCP/IP and use the Client/Server pattern. Client and server are connected by Winsock controls to realize communication. Picture Box control as the main body of the blackboard is used. The final purpose of this system is to realize controllable visual graphic and character info transmission in real time between two pc or amony multiple PC.