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visual development tools such as Visual C++, Delphi, C++ Builder and others all...
虽然Windows下可视化开发工具如VC、Delphi、C++ Builder等都有专用的定时器控件Timer,而且使用很方便,可以实现一定的定时功能,但最小计时精度仅为55ms,且定时器消息在多任务操作系统中的优先级很低,不能得到及时响应,往往不能满足实时控制环境下的应用。不过Microsoft公司在Win32 API函数库中已经为用户提供了一组用于高精度计时的底层函数,如果用户使用得当,计时精度可到1ms。这个计时精度、对于一般的实时系统控制完全可以满足要求。现将由C++ Builder 4.0提供的重新封装后的一组与时间相关的主要接口函数(函数名、参数、功能与Win32 API基本相同)说明如下:
-visual development tools such as Visual C++, Delphi, C++ Builder and others all have dedicated Timer timer control, but it is convenient. can achieve a timing function, but only the minimum time of 55 ms accuracy. Timer news and multi-task operating system in the low priority that is not to respond in a timely manner, often fail to meet the real-time control environment applications. However, Microsoft Corporation in the Win32 API function has been to provide the user with a group for high-precision the bottom was a time function, if the user is properly utilized, time accuracy can be a ms. Accuracy this time, and for most of the real-time control system can meet the requirements.
- 2022-02-11 22:11:49下载
- 积分:1
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用MATLAB产生GOLD序列,大家可以学习一下~
用MATLAB产生GOLD序列,大家可以学习一下~-GOLD sequence generated using MATLAB, we can learn from you ~
- 2022-02-18 14:58:41下载
- 积分:1
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Visual C++ OPC Client实例
本源码是基于C++开发的OPC客户端程序开发实例。
OPC(OLE for Process Control)是根据Microsoft的OLE(现在Active)、COM(部件对象模型)
- 2022-03-26 13:43:08下载
- 积分:1
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C#开发短信猫超长短信GSMMODEM.DLL
资源描述GSMMODEM类库,帮助发送与接收短信(通过与短信猫进行串口通信),支持长短信有详细介绍!有例程,有代码,使用非常稳定,完美测试通过Wavecom和西门子短信猫。
- 2022-07-13 23:57:56下载
- 积分:1
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Visual Basic 自动化系统监控源代码 第八章
Visual Basic 自动化系统监控源代码 第八章-Visual Basic Automation System to monitor the source code of Chapter VIII
- 2022-12-30 07:15:03下载
- 积分:1
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用VB实现的通讯软件程序可以显示波形等。
用vb实现的通讯软件程序,同时可以显示波形的串口测试工具。-Vb to achieve communication with the software program can display the waveform of the serial port at the same time testing tool
- 2022-03-01 19:43:52下载
- 积分:1
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The development of a full range of DICOM files, digital image communication nece...
全系列DICOM开发文档,数字图象通信必备的资料,难得滴全,欢迎下载-The development of a full range of DICOM files, digital image communication necessary information, a rare drop of the entire welcome to download
- 2022-01-31 10:39:23下载
- 积分:1
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RC低通滤波器参数计算,可以方便地计算时间常数,衰减倍数等。
RC低通滤波器参数计算,可以方便地计算时间常数,衰减倍数等。-RC low-pass filter parameters, you can easily calculate the time constant, in multiples, such as attenuation.
- 2022-09-19 01:10:03下载
- 积分:1
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can总线通信VB6源程序。用于编写can通信协议,以及测试can总线。...
can总线通信VB6源程序。用于编写can通信协议,以及测试can总线。-can bus communication VB6 source. Can prepare for the communication protocol and can test bus.
- 2022-08-02 20:33:31下载
- 积分:1
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通过Visual Basic编写的VB版局域网电影视频共享系统,可以共享区域内的影视资源...
通过Visual Basic编写的VB版局域网电影视频共享系统,可以共享区域内的影视资源-VB written by Visual Basic version of the film video-sharing local area network system, video can be shared resources within the region
- 2022-11-09 21:55:03下载
- 积分:1