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  "identifier" : "/documentation/AppKit/NSTextViewDelegate/textView(_:urlForContentsOf:at:)",
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  "title" : "textView(_:urlForContentsOf:at:)"
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# textView(_:urlForContentsOf:at:)

Returns a URL representing the document contents for a text attachment.

```
@MainActor optional func textView(_ textView: NSTextView, urlForContentsOf textAttachment: NSTextAttachment, at charIndex: Int) -> URL?
```

## Parameters

`textView`

The text view sending the message.

`textAttachment`

The text attachment object containing an `NSFileWrapper` object that holds the contents of the attached file.

`charIndex`

The character index of the text attachment.

## Return Value

The absolute URL for the document contents represented by `textAttachment`.

## Discussion

The returned `NSURL` object is used by the text view to provide default behaviors involving text attachments such as Quick Look and double-clicking. For example, the `NSTextView` method [`quickLookPreviewableItems(inRanges:)`](/documentation/AppKit/NSTextView/quickLookPreviewableItems(inRanges:)) uses this method for mapping text attachments to their corresponding document URLs, and `NSTextView` invokes the `NSWorkspace` method [`open(_:)`](/documentation/AppKit/NSWorkspace/open(_:)) with the URL returned from this method when the delegate has no [`textView(_:doubleClickedOn:in:at:)`](/documentation/AppKit/NSTextViewDelegate/textView(_:doubleClickedOn:in:at:)) implementation.

## See Also

[`textView(_:doubleClickedOn:in:at:)`](/documentation/AppKit/NSTextViewDelegate/textView(_:doubleClickedOn:in:at:))

Sent when the user double-clicks a cell.

[`quickLookPreviewableItems(inRanges:)`](/documentation/AppKit/NSTextView/quickLookPreviewableItems(inRanges:))

Returns an array of URLs for items that can be displayed by QuickLook in the specified ranges.


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