用VxD实现并行数据通讯

VxD Realization of Parallel Data Communication

通过开发实例介绍了在Delphi5 .0中利用虚拟设备驱动程序进行动态加载 ,实现与并行采集卡通讯的技术方法 .

There is a thorough description of the way applied to a virtual Device Driver to conduct dynamic loading so as to realize visit to parallel collecting cards.