Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

MSComm32.ocx

Posted on 1998-03-18
5
Medium Priority
?
247 Views
Last Modified: 2011-10-03
Hi,
I wrote a small program which uses the MSComm32.ocx to transfert data from serial port. On my computer, it works very weel, but when I want to execute it on a other computer, an error message tells me that a not supported operation was tempted. This error occurs each time that the program performs the UpdateData() function.  I used the class wizard to map a control variable to the ocx. My question is why it is working on my PC and not on other? I tried to compile my app whith the MFC in a static library but I got the same error.
Thanks
0
Comment
Question by:adnrwin
  • 2
  • 2
5 Comments
 
LVL 4

Expert Comment

by:jtwine100697
ID: 1183612
  Are you sure that the OCX is available and registered on the "other computer"?

-=- James.
0
 

Author Comment

by:adnrwin
ID: 1183613
The OCX wasn't registered on the other computer. I regitered it (with Visual C++ 4.0 CD) and my program worked. What files are needed to use the MSComm32.ocx and what my installation program does have to write in the registry for registering this OCX?
0
 
LVL 3

Accepted Solution

by:
stefanr earned 80 total points
ID: 1183614
You register OCX:es with the program REGSVR32.EXE, that is supplied with the NT system itself.

I.e.
C:\WINNT\SYSTEM32>regsvr32 mscomm32.ocx

To unregister, just use the /u switch. Theres no need to write in the registry yourself.

/Stefan
0
 
LVL 4

Expert Comment

by:jtwine100697
ID: 1183615
  "stefanr" is right...  You can make the calls to REGSVR32.EXE from your (un)install program.

-=- James.
0
 

Author Comment

by:adnrwin
ID: 1183616
Thanks guys!!
0

Featured Post

Concerto Cloud for Software Providers & ISVs

Can Concerto Cloud Services help you focus on evolving your application offerings, while delivering the best cloud experience to your customers? From DevOps to revenue models and customer support, the answer is yes!

Learn how Concerto can help you.

Question has a verified solution.

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

This article will show you some of the more useful Standard Template Library (STL) algorithms through the use of working examples.  You will learn about how these algorithms fit into the STL architecture, how they work with STL containers, and why t…
C++ Properties One feature missing from standard C++ that you will find in many other Object Oriented Programming languages is something called a Property (http://www.experts-exchange.com/Programming/Languages/CPP/A_3912-Object-Properties-in-C.ht…
The goal of the video will be to teach the user the concept of local variables and scope. An example of a locally defined variable will be given as well as an explanation of what scope is in C++. The local variable and concept of scope will be relat…
The viewer will learn how to use the return statement in functions in C++. The video will also teach the user how to pass data to a function and have the function return data back for further processing.
Suggested Courses

971 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