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# CFUserNotificationDisplayNotice(_:_:_:_:_:_:_:_:)

Displays a user notification dialog that does not need a user response.

```
func CFUserNotificationDisplayNotice(_ timeout: CFTimeInterval, _ flags: CFOptionFlags, _ iconURL: CFURL!, _ soundURL: CFURL!, _ localizationURL: CFURL!, _ alertHeader: CFString!, _ alertMessage: CFString!, _ defaultButtonTitle: CFString!) -> Int32
```

## Parameters

`timeout`

The amount of time to wait for the user to dismiss the notification dialog before the dialog dismisses itself. Pass `0` to have the dialog never time out.

`flags`

A set of flags describing the type of notification dialog to display. The value is normally just the alert level from [Alert Levels](/documentation/CoreFoundation/1534483-alert-levels). If you don’t want a default button displayed, perform a bitwise-OR operation with the alert level and the constant [`kCFUserNotificationNoDefaultButtonFlag`](/documentation/CoreFoundation/kCFUserNotificationNoDefaultButtonFlag).

`iconURL`

A file URL pointing to the icon to display in the dialog. If `NULL`, a default icon is used based on the notification’s alert level specified in `flags`.

`soundURL`

Not used.

`localizationURL`

A file URL pointing to a bundle that contains localized versions of the strings displayed in the dialog. Can be `NULL`.

`alertHeader`

The title of the notification dialog. Cannot be `NULL`.

`alertMessage`

The message string to display in the dialog. Can be `NULL`.

`defaultButtonTitle`

The title of the default button. If `NULL`, the string `OK` is used.

## Return Value

`0` if the cancel was successful; a non-`0` value otherwise.

## Discussion

This function returns immediately. It does not wait for a user response after displaying the dialog.

---

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