VB动态链接库(DLL)在自动化测距系统中的实现

The Realization of the VB DLL in the Auto Ranging System

动态链接库（ＤＬＬ）是一种有效的编程方法。本文以自动化测距系统中控制测距仪自动测距的程序模块为例，讲述了用Ｖｉｓｕａｌ Ｂａｓｉｃ创建数据接口（即属性和方法）从而实现该类动态链接库的方法和技巧。本文还简要阐述了建立测试工程对该类动态链接库进行测试的过程，测试结果表明该方法非常有效。

DLL is a useful programming method.Using the program unit which is designed to control telemeter in automatic measuring system as an example, this paper mainly introduces the method and technique of establishing data interface(naxnely, Property and Method)and accordingly has realized these DLLs. Besides. This paper briefly explains the proceed of establishing test project and tests these DLLs. The test result shows that this method is effective.