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# MPMoviePlayerThumbnailImageRequestDidFinishNotification

Posted when a request to capture a thumbnail from a movie has finished whether the request succeeded or failed. Upon successful capture of a thumbnail, the `userInfo` dictionary contains values for the following keys:

```
extern NSString * const MPMoviePlayerThumbnailImageRequestDidFinishNotification;
```

## Discussion

- [`MPMoviePlayerThumbnailImageKey`](/documentation/MediaPlayer/MPMoviePlayerThumbnailImageKey)
- [`MPMoviePlayerThumbnailTimeKey`](/documentation/MediaPlayer/MPMoviePlayerThumbnailTimeKey)

If the capture request finished with an error, the `userInfo` dictionary contains values for the following two keys:

- [`MPMoviePlayerThumbnailErrorKey`](/documentation/MediaPlayer/MPMoviePlayerThumbnailErrorKey)
- [`MPMoviePlayerThumbnailTimeKey`](/documentation/MediaPlayer/MPMoviePlayerThumbnailTimeKey)

The movie player whose state has changed is available as the object associated with the notification. The methods to use for capturing movie thumbnails are described in Generating thumbnail images.

---

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