Hi,

> could anyone send me a short example who to use trigger in c++ (windows).

You don't ... Triggers are executed on the server, by the database engine.
Not
by client applications.

Have a look at the EMPLOYEE example database, read the documentation
on triggers and Stored Procedures and make sure you understand the basics
of triggers and stored procedures.

If there's anything you don't understand after that, feel free to ask.

Martijn Tonies
InterBase Workbench - the developer tool for InterBase and Firebird
http://www.interbaseworkbench.com

Upscene Productions
http://www.upscene.com

"This is an object-oriented system.
If we change anything, the users object."