# focus

Talks to the event broker and switches the focus to a different listener.

### Synopsis

`focus [listener]`

### Description

Lets you view the current focus holder, or change it.

### Arguments

listener
  Name or hexadecimal address of a message port to which the focus should be diverted. If this is not specified, the program lists the current focus holder.

### Associated Files

focus.c

### Location

$c/focus

examples/EventBroker/Event_Broker_Tests