利用DLL文件为VisualBasic增加可访问硬件端口的I/O函数

Use DLL Add Functions of Access Hardware I/O Port for VisualBasic

文中介绍了利用VisualC++编制DLL文件,为VisualBasic增加可访问硬件端口的I/O函数。并给出了在VisualC++5.0下的实现的DLL文件的C源程序和在VisualBasic5.0下的使用方法。

In this paper, recommend using Visualc++write DLL add functions of access hardware I/O port for VisualBasic. DLL's source program of Visualc++5.0 and using method of VisualBasic 5.0 is given.