?
Solved

Find the number of serial and parallel ports on computer

Posted on 2003-11-06
7
Medium Priority
?
283 Views
Last Modified: 2010-04-05
How can i find the number of serial and parallel ports on any computer (98 or NT)
0
Comment
Question by:mece
[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
  • 3
  • 2
7 Comments
 
LVL 12

Expert Comment

by:andrewjb
ID: 9694669
I've never found a decent way by looking in the registry or anything like that. Some things work on NT, some on 95/98, but not on both.

To find serial ports, I simply try to Open every 'file' named "COM1" , "COM2", .... up to, sayt "COM99"
It either works, fails with an error code that means 'not there' or fails with an error code that means 'exists, but open by someone else'.

That's the only way I've come up with so far.
0
 
LVL 12

Expert Comment

by:andrewjb
ID: 9771311
As a comment, this took me quite a while to figure out, so it might be worth PAQ-ing as a possible solution. I haven't found or come up with anything better since.
(You could even give me the points :-)  )
0
 

Author Comment

by:mece
ID: 9773226
but that is not the answer
i found the answr at the internet
the answer is look to the registry
HKEY_LOCAL_MACHINE\HARDWARE\DEVICEMAP\PARALLEL PORTS
HKEY_LOCAL_MACHINE\HARDWARE\DEVICEMAP\SERIALCOMM


0
VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

 
LVL 12

Expert Comment

by:andrewjb
ID: 9796046
OK - if you think that's the answer, it would be useful to expand a little so this question can be PAQ-d for future reference.

I'm not convinced, though. Have you tried tihs on Win95/98, NT, XP and 2000? I'm pretty sure I took that path, too, and it doesn't work on all platforms.
0
 
LVL 2

Accepted Solution

by:
Lunchy earned 0 total points
ID: 9799809
PAQed - no points refunded (of 50)

Lunchy
Friendly Neighbourhood Community Support Admin
0
 

Author Comment

by:mece
ID: 9800115
i tried at 98 and above,
i dont tried at windows 95,
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Creating an auto free TStringList The TStringList is a basic and frequently used object in Delphi. On many occasions, you may want to create a temporary list, process some items in the list and be done with the list. In such cases, you have to…
Have you ever had your Delphi form/application just hanging while waiting for data to load? This is the article to read if you want to learn some things about adding threads for data loading in the background. First, I'll setup a general applica…
In this video, Percona Solution Engineer Dimitri Vanoverbeke discusses why you want to use at least three nodes in a database cluster. To discuss how Percona Consulting can help with your design and architecture needs for your database and infras…
How to fix incompatible JVM issue while installing Eclipse While installing Eclipse in windows, got one error like above and unable to proceed with the installation. This video describes how to successfully install Eclipse. How to solve incompa…
Suggested Courses
Course of the Month9 days, 5 hours left to enroll

764 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