# unregister_key_event_handler_EX1<no value>

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Deprecated. Use `fsEventsUnregisterKeyEventHandler` instead.

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The **unregister\_key\_event\_handler\_EX1** function unregisters the key event handler.

 

##### Syntax

``` wasm
void unregister_key_event_handler(
    GAUGE_KEY_EVENT_HANDLER_EX1  handler,
    PVOID  userdata
    );
```

 

##### Members

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| Parameters | Description                                                                 |
|------------|-----------------------------------------------------------------------------|
| `handler`  | Specifies the handler function.                                             |
| `userdata` | Specifies the user data value specified when creating the handler function. |

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##### Return Values

This function does not return a value.

 

##### Remarks

N/A