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DDE for WEB Forms [message #139356] Tue, 27 September 2005 11:09 Go to next message
vimald
Messages: 4
Registered: September 2005
Junior Member
Hi there

I am working on forms upgrade from 6i to 10g. We are using DDE functionality in our system. Problem is, Built in DDE package does not work in webforms. Even Webuitl does not support DDE.
Does anyone has developed bean for DDE functionality in web forms? Any help in this matter is very much appreciated.

Thanks and Regards,

Vimal.
vimal.dsouza@gmail.com

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Re: DDE for WEB Forms [message #139436 is a reply to message #139356] Wed, 28 September 2005 00:45 Go to previous messageGo to next message
djmartin
Messages: 10181
Registered: March 2005
Location: Surges Bay TAS Australia
Senior Member
Account Moderator
What functionality of DDE are you trying to use? Have your read ALL the 'dde' and 'webutil' threads? Remember, in 3-tier the action happens on the Developer Server/Application Server. Is this applcation running on a single PC or will it run through a production Application Server?

David

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Re: DDE for WEB Forms [message #139456 is a reply to message #139436] Wed, 28 September 2005 02:13 Go to previous messageGo to next message
vimald
Messages: 4
Registered: September 2005
Junior Member
Hi David

System will be running through application server. It is multi user system. Now DDE application I want to communicate will be running on the client machine. It can communicate via DDE only.
Hence I cannot use Webutil as it does not support DDE.
They are suggesting using Java Bean (Client Java DDE), which should allow you to use DDE with the application running on client machine.

Please let me know if you need more details?

Thanks,

Vimal

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Re: DDE for WEB Forms [message #139622 is a reply to message #139456] Wed, 28 September 2005 18:29 Go to previous messageGo to next message
djmartin
Messages: 10181
Registered: March 2005
Location: Surges Bay TAS Australia
Senior Member
Account Moderator
Is it feasible to use the WebUtil_C_API?
Quote:

WebUtil_C_API
C_API is a comprehensive API, which allows you to call into C libraries on the client. At present the API only supports Win32 Clients.

You must register your function that you wish to call, this requires the name of the library file (e.g. DLL or .EXE) that contains the function and the name of the function itself. Once declared, the reference to the function is held in a specialist type WebUtil_C_API.FunctionHandle.

If the function takes parameters then you will need to declare a parameter list (of type WebUtil_C_API.ParameterList) to which you add each parameter to the function in turn, providing an indicator of the datatype, a value if required, a maximum size (for char* variables) and an indictor saying if this parameter is IN, OUT or IN OUT.

Functions are invoked passing the handle of the registered function and the handle of the parameter list that defines its parameters.


Did you find anything on the Oracle site about Java and DDE? I just did a search for 'Java DDE' on google and received some interesting hits. Give it a go.

Please tell us what you ultimately do as it will be of interest to us all.

David

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Re: DDE for WEB Forms [message #139754 is a reply to message #139456] Thu, 29 September 2005 08:15 Go to previous message
vimald
Messages: 4
Registered: September 2005
Junior Member
Hi David

Thanks for your reply.
I am trying to plug in 3rd party Java DDE using Enhanced Javabean. No success so far. Will update once I sort out this problem.

I will also look at webutil_c_api.

Thanks,

Vimal

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