[erlang-questions] Re: gen_event help

Robert Virding <>
Fri Jan 28 11:11:40 CET 2011

Have you added the handler using test:add_handler(). The test:start_link() only starts the event manager, you need to give it something to do by explicitly adding handlers, even if they are in the same module. Which is not always good practice, even if alarm_handler does it.

Two links about event handlers from the on-line docs:

>From the Design Principles section: http://www.erlang.org/doc/design_principles/events.html

And the gen_event module: http://www.erlang.org/doc/man/gen_event.html

----- "shk" <> wrote:

> Thank you for reply. 
> I make it first:
> handle_event({test}, State) ->
>     io:format("Test"),
>     {ok, State};
> handle_event(_Event, _State) ->
>     {ok, _State}.
> But when i call notify/1 it's nothing output.
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Robert Virding, Erlang Solutions Ltd.

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