Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Delphi DDE an ICW

Posted on 1998-11-10
5
Medium Priority
?
382 Views
Last Modified: 2010-04-03
Hi:
I'm writting an application that reads some data from a tracker (Intermec 2090). There's an application for windows
ICW that is DDE compliant. I'm not very used to DDE topics,
how can i download the scanned barcode's data from the tracker directly into my delphi application ?

Thanks
0
Comment
Question by:frankarias
[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
5 Comments
 
LVL 4

Expert Comment

by:dwwang
ID: 1346409
I had programmed DDE in Delphi before, but how could I help you?
0
 

Author Comment

by:frankarias
ID: 1346410
Please post code
0
 
LVL 4

Expert Comment

by:dwwang
ID: 1346411
No, things are not that easy. We must know how the data are transfered from the DDE server, the EXE name, the DDE topic/item, and the data format. These information should be provided by the manual of the software/hardware.
0
 

Author Comment

by:frankarias
ID: 1346412
The exe mane is ICW
there are 2 Topics  SYSTEM and DATA
I don't know what you mean by item and there's nothing
like that in the ICW help file
0
 
LVL 4

Accepted Solution

by:
dwwang earned 200 total points
ID: 1346413
Just put a DdeClientConv and a DdeClientItem on the form, Set the ddeconv property of the DdeClientItem component to DdeClientConv.

Then you can just execute DdeClientConv.SetLink('ICW','DATA') (normally DATA topic is the one responsable for data trsnferring).

When data is transfer the from the server, the onchange event of ddeclientitem will be called, so you should qrite statements there to read the text/lines of the ddeclientitem for the data.

However, as I remembered, there should be an item property of DDE server, maybe you could check it out. If there is, it should be put to the ddeitem property of the ddeclientitem component.
0

Featured Post

Enroll in September's Course of the Month

This month’s featured course covers 16 hours of training in installation, management, and deployment of VMware vSphere virtualization environments. It's free for Premium Members, Team Accounts, and Qualified Experts!

Question has a verified solution.

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

Objective: - This article will help user in how to convert their numeric value become words. How to use 1. You can copy this code in your Unit as function 2. than you can perform your function by type this code The Code   (CODE) The Im…
Introduction I have seen many questions in this Delphi topic area where queries in threads are needed or suggested. I know bumped into a similar need. This article will address some of the concepts when dealing with a multithreaded delphi database…
In this video, Percona Solution Engineer Rick Golba discuss how (and why) you implement high availability in a database environment. To discuss how Percona Consulting can help with your design and architecture needs for your database and infrastr…
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

670 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