Windows下打印函数库，可直接操作并口打印数据。用VC6开发-Windows Print functions can be directly operated parallel print data. Developed using VC6

程控交换软件开发中的一些常用库函数及实现-Program-controlled switching in software development and implementation of some commonly used library functions

arcnet C++ 会话软件源码，主要用于通讯测试，也可以通过二次开发成为通讯软件，内有已编译的DLL动态链接库文件，附英文DOC文档对参数进行了描述，SYS20020.H头文件定义了COM20020协议芯片的相关地址和功能。-software source arcnet C++ session, mainly for the communication test can also be secondary development of communications software, the