Hi All,

Delphi 7, IBO 4.6A, FB 1.5.

My application wants to be informed of changes in a database.

If possible, I use a TIB_Events for this.

Sometimes it is not possible to use events, due to firewalls, using
superserver behind a NAT_router, or whatever. No problem, I can poll for
changes.

I would like the application to automattically try to use events and if
not possible, use polling.

But... if I call TIB_Events.RegisterEvents on a connection where no
secondary connection can be opened, following things happen:

1. After a delay of about 20 sec an error pops up saying that its
impossible to create a secondary connection for events. OK.
2. I cannot confirm (click on OK) the error. The app is frozen. Need
taskmanager to kill it.

If I catch the error in a try except, same thing happens. Freeze.

I usually put the call to RegisterEvents in the
IB_Connection.AfterConnect. If I try to registerEvents on a buttonclick,
same thing happens.

Any thoughts?

tia!

John





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John vd Waeter
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