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Register an event listener (thread.register_event)

Declaration​

event_id = thread.register_event(event_name, callback [, on_error ])

Parameters​

  • event_name
    String. The event name.
  • callback
    Function. Callback to invoke when the event is triggered.
  • on_error
    Function. Optional error callback. If the callback throws, this will be invoked and no error is rethrown.

Returns​

  • event_id
    Integer.

Description​

Register a listener. When the named event in the process queue dictionary has a value, the value is popped and passed to the callback.

Example​

See chapter end