在C ++中访问多个COM端口 [英] Access Multiple COM Port in C++

问题描述

我是C ++的新手.在我的项目中，我为我的项目使用了DLL.在C ++中创建的DLL用于访问COM端口.但是我需要同时更改多个COM端口"访问.我不知道如何要实现这一目标?请帮助我.
谢谢
问候，
Lakshmi Narayanan.S

Hi,
I am new for C++.In my Project,I used a DLL for my Project.In that DLL created in C++ for accessing COM Port.But i need to Change the Multiple COM Port access at same time.I don''t know how to achieve this ?Please help me.
Thanks
Regards,
Lakshmi Narayanan.S

推荐答案

您需要了解一些使用Windows API的基本文件操作.
首先浏览此api
http://msdn.microsoft.com/en-us/library/aa363858％28v = vs.85％29.aspx [ ^ ]
http://msdn.microsoft.com/en-us/library/aa365467% 28VS.85％29.aspx [ ^ ]
http://msdn.microsoft.com/en-us/library/ms724211％28v = VS.85％29.aspx [ ^ ]

您可以通过使用文件名称为COM1，COM2，COM3等的CreateFile来处理多个com端口.

You need to know some basic file operation using Windows APIs.
Go through this apis first
http://msdn.microsoft.com/en-us/library/aa363858%28v=vs.85%29.aspx[^]
http://msdn.microsoft.com/en-us/library/aa365467%28VS.85%29.aspx[^]
http://msdn.microsoft.com/en-us/library/ms724211%28v=VS.85%29.aspx[^]

You can get a handle to several com ports by using CreateFile with file name like COM1,COM2,COM3 and so on.

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