Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!ukc!axion!vision!chris
From: chris@vision.UUCP (Chris Davies)
Newsgroups: comp.windows.ms
Subject: Re: Wanted: DDE Specifications
Message-ID: <1150@vision.UUCP>
Date: 30 Jul 90 15:27:23 GMT
References: <812@stewart.UUCP>
Reply-To: chris@vision.UUCP (Chris Davies)
Organization: VisionWare Ltd., Leeds, UK
Lines: 37

In article <812@stewart.UUCP> bill@stewart.UUCP (Bill Poitras) writes:
>Is Dynamic Data Exchange (DDE) for Windows just some sort of transfer 
>protocol.

DDE is a communications protocol for use between MS-Windows applications.  In
its usual use this requires pseudo-shared memory (since chunks of data are
passed between applications by transfering the memory HANDLE.

>  Can it be implemented over TCP/IP, or other transports?

You would need some program sitting on your PC to handle the transfer of
DDE requests from MS-Windows to/from Unix.

>  Has
>it?  If someone could e-mail me the DDE spec, I would greatly appreciate
>it.

Isn't it given (such as it is) in the back of one of the SDK manuals?  I'm
sure (if my memory serves me right) that's where we got this information.

>  What I want to do it write an application in Unix that will 
>talk to windows programs, and want it to update spreadsheet programs
>as information is availible on the network.  Is this protocol standard?

We have a (commerical) program which allows Unix-based applications to use DDE
to/from MS-Windows.  In fact, we use Unix/Informix controlled by Excel and/or
Word-For-Windows...

More information on request (lest I get flamed for advertising  :-)

Chris
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