Solved

Com Port

Posted on 1999-01-09
1
278 Views
Last Modified: 2013-11-15
void OpenPort(LPCTSTR szPortNum)
{
    HANDLE hCom = CreateFile(szPortNum,          
                          GENERIC_READ | GENERIC_WRITE,
                          0,                    
                          NULL,                  
                          OPEN_EXISTING,        
                          FILE_FLAG_OVERLAPPED,  
                          NULL);                
}

What parameter should I pass to the above function if I were to open a com port (COM2) ?

I tried something like this :

OpenPort("Com2");

but the CreateFile() return an invalid handle.

Thank you!


0
Comment
Question by:kctan100
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 

Accepted Solution

by:
zona earned 10 total points
ID: 1181804
Very simple,you should call your function case sensetivly.
OpenPort("COM2") instead of OpenPort("Com2");  
0

Featured Post

On Demand Webinar: Networking for the Cloud Era

Did you know SD-WANs can improve network connectivity? Check out this webinar to learn how an SD-WAN simplified, one-click tool can help you migrate and manage data in the cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

If your app took Google’s lash recently, here are the 5 most likely reasons.
In this article I discuss my selections of the Top Four free Outlook OST File Viewers available. Open, view and read even damaged OST files by using these tools. They all provide a clear preview of all data such as emails, notes, tasks, calendars, e…
The viewer will learn how to use the return statement in functions in C++. The video will also teach the user how to pass data to a function and have the function return data back for further processing.
The viewer will be introduced to the member functions push_back and pop_back of the vector class. The video will teach the difference between the two as well as how to use each one along with its functionality.

628 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question