Read USB Port Continuously.

Question

0.00/5 (No votes)

See more:

i want to read the data from USB Port continuously as soon as i press a button and Open a dialog box in MFC? Pls someone help me out?
Thanks in Advance.

Posted 15-Jun-12 22:47pm

Fresher16

Updated 15-Jun-12 22:49pm

v2

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Accepted Answer · 2012-06-15T22:51:00

Solution 1

No, you don't.

What you actually want to do is handle the SerialPort DataRecieved messages, and process each byte as it arrives, or transfer them to a buffer for processing in the background.

If you try to read continuously, you will lock up your UI and annoy your users...

Posted 15-Jun-12 22:51pm

OriginalGriff

Comments

Fresher16 16-Jun-12 5:19am

i didn't get you? i want to read the response generated by my hardware on Printer keystrokes as soon as dialog opens.

SoMad · Accepted Answer · 2012-06-15T22:59:00

Solution 2

There are several applications like that here on CP - search and look through them. Here is one to get you started: CSerialIO - A Useful and Simple Serial Communication Class[^]

You tagged C++, so that is the example I added here. There are other nice projects in C# if you are interested.

Soren Madsen

Posted 15-Jun-12 22:59pm

SoMad

Comments

Fresher16 16-Jun-12 5:17am

i have gone through your project before and it really helps to understand the serial communication concept for the freshers like me.
i will tell u what m trying to do.
i m sending a command to my hardware on a button click event and after that m opening a new dialog and i want to read the data from USB as soon as the dialog initializes or simultaneously

Fresher16 16-Jun-12 5:34am

My Project deadline are too close n i have to do something on it by monday so pls help me out?