Solved

read data from COM port

Posted on 1997-08-24
1
225 Views
Last Modified: 2013-11-25
We wish to use a bar code scanner which connected to COM port. So, how can we read those data (bar code) directly from the COM port using visual basic 4.0 or above. (i.e once the scanner reads data, the code will immediately show on the screen).  Pls state the syntax, the expression and the declaration.
System:
port : COM1/2/3...
baud rate: 9600bps or above
parity: none
data bit: 8
Stop bit: 1
flow control: hardware
0
Comment
Question by:fyp
1 Comment
 
LVL 3

Accepted Solution

by:
dansari earned 50 total points
ID: 1432086
fyp:

You should use the MSComm control that comes with VB4 - it's specifically for reading and writing to the com ports.  Look it up in the on-line help - all the properties and methods are described there.

Hope this helps.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
What are the big features of MVC5? 4 72
Convert VB6 MSXML2.ServerXMLHTTP process to C# 2 41
VBA Shell can't Find Word document 11 76
Problem to With line 4 42
Article by: Martin
Here are a few simple, working, games that you can use as-is or as the basis for your own games. Tic-Tac-Toe This is one of the simplest of all games.   The game allows for a choice of who goes first and keeps track of the number of wins for…
You can of course define an array to hold data that is of a particular type like an array of Strings to hold customer names or an array of Doubles to hold customer sales, but what do you do if you want to coordinate that data? This article describes…
As developers, we are not limited to the functions provided by the VBA language. In addition, we can call the functions that are part of the Windows operating system. These functions are part of the Windows API (Application Programming Interface). U…
Get people started with the process of using Access VBA to control Outlook using automation, Microsoft Access can control other applications. An example is the ability to programmatically talk to Microsoft Outlook. Using automation, an Access applic…

920 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

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now