Re: Callback function from Forms to server?

Hi

You can use the DBMS_ALERT package, which can signalize events between 2 processes. But the forms application will have to pool the alert queue time to time (using an timer), as forms has no callback functions.

You can find more information on the Oracle Server Application Developer's guide, and ask me if you need more help.

Good Luck
Luis Cabral

Albert Ratzlaff wrote:
>
> Forwarded Message from: albert_at_infonet.com.py (Albert Ratzlaff)
>
> Hi all,
>
> First of all thanks to Thomas Kyte for the answer to my last question
> (about stored procedures acting like cursors). It seems the post did'nt
> make it to the newsgroup.
>
> What would be the recommended way to implement a callback function in
> Forms 4.5. The scenario would be as follows: Forms activates a server
> stored procedure, and somehow passes a reference to a procedure in a
> Forms package. The server procedure would call the passed procedure to
> communicate asincronically with Forms. This could be used to implement
> progress indicators, for example, and is generally useful when the
> procedure has an undefined run length. For example, a server procedure
> that reads a hardware device and sends succesive messages to Forms.
>
> Again, thanks for any suggestions.
>
> Regards
> Albert Ratzlaff
Received on Fri Nov 06 1998 - 21:40:43 CET