# Selection.addListener()

#### Availability

Flash Player 6.

#### Usage

`Selection.addListener(``newListener``)`

#### Parameters

`newListener` An object with an `onSetFocus` method.

#### Returns

None.

#### Description

Method; registers an object to receive keyboard focus change notifications. When the focus changes (for example, whenever the `Selection.setFocus` method is invoked), all listening objects registered with `addListener` have their `onSetFocus` method invoked. Multiple objects may listen for focus change notifications. If the listener `newListener` is already registered, no change occurs.