A self-designed control of PC parallel port communication is introduced in this paper.Taking advantage of the MFC ActiveX technology, it is developed in Visual C++ and offset the scarcity of the control of PC parellel paort communication. An example

监控计算机四个串口通信，进行设置后就可以进行串口数据的收发，自由更改，完全免费，没有用MFC的activeX控件。-The class is not intended to use as a baseclass for modemcommunication but more for driving hardware or reading hardware via the serial port. From the classes included there is only on