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# CMTagCollectionAddTagsFromCollection

Add the tags contained in one collection to another.

```
extern OSStatus CMTagCollectionAddTagsFromCollection(CMMutableTagCollectionRef tagCollection, CMTagCollectionRef collectionWithTagsToAdd);
```

## Parameters

`tagCollection`

The tag collection to add tags to.

`collectionWithTagsToAdd`

The collection containing the tags to add.

## Return Value

Returns `0` on success and a value from Tag Collection Error Codes on failure.

---

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