Solved

Using MSComm in Microsoft Access 2003

Posted on 2006-12-01
6
1,574 Views
Last Modified: 2008-01-09
Hi,
I have developed a POS sytem using Microsoft Access.  I am using MSComm to transmit information to a pole display, which works fine.  I have different forms that  needs to send information to the Pole Display.  I would like to work with only one form that has MSComm controls.  So,  I created a form and called it CommForm, and I called the MSComm control commpd. I created another form with a command button and I paste the attached code to it.  When I click on the command button, I get the following message: Run-time error '91' Object variable or with block variable not set.  I don't know what commands I am missing.  Can someone please help.

Private Sub Command0_Click()

If CommForm.commpd.PortOpen = False Then
    CommForm.commpd.PortOpen = True
End If

Dim s As String
s = "testing"
CommForm.commpd.Output = s

End Sub
0
Comment
Question by:rowenab
[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
6 Comments
 
LVL 7

Expert Comment

by:mquiroz
ID: 18073797
are you sure that the form with the control is already open when the code executes?

it seems that you're triyng to use a control that doesn't exist at runtime yet...
0
 

Author Comment

by:rowenab
ID: 18079049
yes, the form with the controls are open
0
 

Author Comment

by:rowenab
ID: 18090394
Hello
I figured out the problem.  My form works fine using global variables.  This question can now be closed.
0
 
LVL 3

Expert Comment

by:taycuong76
ID: 18091467
You have to load form CommForm first, then fire it from the other form wwhich has command1 button.
MScomm control have no property nor method nor constant named "commpd".
0
 
LVL 1

Accepted Solution

by:
Computer101 earned 0 total points
ID: 18231888
PAQed with points refunded (500)

Computer101
EE Admin
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Adobe Customization Wizard XI issues 26 280
fizzArray3  challenge 1 116
countX 22 187
firstChar challenge 13 149
Having just graduated from college and entered the workforce, I don’t find myself always using the tools and programs I grew accustomed to over the past four years. However, there is one program I continually find myself reverting back to…R.   So …
This article is meant to give a basic understanding of how to use R Sweave as a way to merge LaTeX and R code seamlessly into one presentable document.
The viewer will learn how to pass data into a function in C++. This is one step further in using functions. Instead of only printing text onto the console, the function will be able to perform calculations with argumentents given by the user.
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.

710 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