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# CFNotificationCenterPostNotification(_:_:_:_:_:)

Posts a notification for an object.

```
func CFNotificationCenterPostNotification(_ center: CFNotificationCenter!, _ name: CFNotificationName!, _ object: UnsafeRawPointer!, _ userInfo: CFDictionary!, _ deliverImmediately: Bool)
```

## Parameters

`center`

The notification center to post the notification.

`name`

The name of the notification to post. This value must not be `NULL`.

`object`

The object posting the notification. If `NULL`, the notification is sent only to observers that are observing all objects. In other words, only observers that registered for the notification with a `NULL` value for `object` will receive the notification.

    If you want to allow your clients to register for notifications using Cocoa APIs (see     <doc://com.apple.documentation/documentation/Foundation/NotificationCenter>    ), then     `object`     must be a Core Foundation or Cocoa object.

    For distributed notifications,     `object`     must be a CFString object.

    If     `center`     is a Darwin notification center, this value is ignored.

`userInfo`

A dictionary passed to observers. You populate this dictionary with additional information describing the notification. For distributed notifications, the dictionary must contain only property list objects. This value may be `NULL`.

    If     `center`     is a Darwin notification center, this value is ignored.

`deliverImmediately`

If `true`, the notification is delivered to all observers immediately, even if some observers are in suspended (background) applications and they requested different suspension behavior when registering for the notification. If `false`, each observer’s requested suspension behavior is respected.

    If     `center`     is a Darwin notification center, this value is ignored.

## Discussion

---

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