Opening a Comport greater than 9

Question

0.00/5 (No votes)

See more:

I am using CreateFile WIndows API to open a COM port .
but it never open port greater than 9 . How can i fix this thing so that it will be able to open port higher than 9.

Posted 21-Aug-13 20:42pm

asadali.awan

Add a Solution

1 solution

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)

enhzflep · Answer 1 · 2013-08-21T20:49:00

For ports COM1 - COM9, you can use the string that this creates:

C++

sprintf(mPortName, "COM%d", curPort);

For ports COM10 and higher, you can use the following string:

C++

sprintf(mPortName, "\\\\.\\COM%d", curPort);

The difference is just putting "\\\\.\\" before the name of the port.