Delegate

Delegate object is returned by some [[Trading Terminal]] methods and is is required to use an [[Account Manager]]. Using this object you can get updated and update of an event.

subscribe(object, member)

Subscribes object::member to the event.

1. object is an owner of member, it can be null for a function
2. member is a method of object

unsubscribe(object, member)

Unsubscribes object::member from the event.
Use the same object and member that you used in subscribe function to unsubscribe from the event.