Messages between different form sessions

Hello,
I'd like to know if there is any way to send messages between different oracle forms sessions.
Thanks.

I use dbms_alert extensively to do this. Alerts can be named so that a particular forms session only receives the messages it wants. The form signifies which alerts it wants to receive by calling dbms_alert.register. The form has repeating timer which calls dbms_alert.waitone.
The message sender uses dbms_alert.signal. Note that for forms applications, calls to dbms_alert.waitone should normally be given a zero timeout. This allows all of the 'waiting' to be done by the forms timer so normal forms operation is not affected during the wait. dbms_alert.waitone will detect any alerts signalled since the last register or waitone.

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