利用Windows定时器队列开发高精度定时器控件  

The use of Windows timer queue development of high precision timer control

作　　者：杨海娟[1] 

机构地区：[1]兰州职业技术学院电子与信息工程系,兰州730070

出　　处：《自动化与仪器仪表》2015年第3期57-59,共3页Automation & Instrumentation

摘　　要：利用Windows系统提供的定时器队列,实现了一个高精度Active X定时器控件,突破了一些可视化开发工具自带的定时器控件的限制,克服了一些Windows API函数实现的传统的定时方法的缺陷,可以实现定时间隔最长为2147483647毫秒(约为24.855天)的精确定时,为工业控制、数据采集等应用软件的开发提供了极大的方便。A number of methods can be used to develop software timer in Windows. Some of them are analyzed in this paper,and based on the analysis, a timer-queue based Active X timer control is developed. Its timing interval can be as long as 2147483647 ms, and its resolution is very high as well. The control can be conveniently used by programmers in procedure-control or data-collection applications.

关 键 词：定时器 定时器队列 ACTIVEX控件 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]