# trigger_key_event<no value>

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Deprecated. Use `fsEventsTriggerKeyEvent` instead.

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The **trigger\_key\_event** function initiates the action of a key event.

 

##### Syntax

``` wasm
ERR trigger_key_event(
    ID32  event_id,
    UINT32  value
    );
```

 

##### Members

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| Parameters | Description                                                                                                                                                         |
|------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `event_id` | Specifies the event ID. Refer to the list of key events in the [EventIDs document](../../../key-events/key-events/), and the `#define KEY_events` in `gauges.h`. |
| `value`    | Specifies an additional integer value. Set this to zero if it is not required.                                                                                      |

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##### Return Values

The function returns an ERR, which is usually ignored. If the event requested is not appropriate, it simply will not happen.

 

##### Example

``` wasm
static MODULE_VAR nav_light;
lookup_var( &nav_light);
trigger_key_event( KEY_TOGGLE_NAV_LIGHTS, 0 );
```

 

##### Remarks

N/A