# KeyboardEventModifier

Core/KeyboardEventModifier.js 7
This enumerated type is for representing keyboard modifiers. These are keys that are held down in addition to other event types.

##### Properties:

Name | Type | Description
--- | --- | ---
`SHIFT` | Number | Represents the shift key being held down.
`CTRL` | Number | Represents the control key being held down.
`ALT` | Number | Represents the alt key being held down.

### Members

#### static constant Cesium.KeyboardEventModifier.ALT : Number
Core/KeyboardEventModifier.js 30

Represents the alt key being held down.

Default Value: `2`

#### static constant Cesium.KeyboardEventModifier.CTRL : Number
Core/KeyboardEventModifier.js 22

Represents the control key being held down.

Default Value: `1`

#### static constant Cesium.KeyboardEventModifier.SHIFT : Number
Core/KeyboardEventModifier.js 14

Represents the shift key being held down.