---
title: "QLThumbnailIsCancelled(_:)"
framework: quicklook
role: symbol
role_heading: Function
path: "quicklook/qlthumbnailiscancelled(_:)"
---

# QLThumbnailIsCancelled(_:)

Returns whether the creation of the thumbnail was canceled.

## Declaration

```swift
func QLThumbnailIsCancelled(_ thumbnail: QLThumbnail!) -> Bool
```

## Parameters

- `thumbnail`: The thumbnail to create.

## Return Value

Return Value A Boolean value that indicates whether the creation of the thumbnail was canceled.

## See Also

### Creating thumbnails

- [QLThumbnailImageCreate(_:_:_:_:)](quicklook/qlthumbnailimagecreate(_:_:_:_:).md)
- [QLThumbnailCreate(_:_:_:_:)](quicklook/qlthumbnailcreate(_:_:_:_:).md)
- [QLThumbnailDispatchAsync(_:_:_:)](quicklook/qlthumbnaildispatchasync(_:_:_:).md)
- [QLThumbnailCancel(_:)](quicklook/qlthumbnailcancel(_:).md)
- [QLThumbnailCopyDocumentURL(_:)](quicklook/qlthumbnailcopydocumenturl(_:).md)
- [QLThumbnailCopyImage(_:)](quicklook/qlthumbnailcopyimage(_:).md)
- [QLThumbnailCopyOptions(_:)](quicklook/qlthumbnailcopyoptions(_:).md)
- [QLThumbnailGetContentRect(_:)](quicklook/qlthumbnailgetcontentrect(_:).md)
- [QLThumbnailGetMaximumSize(_:)](quicklook/qlthumbnailgetmaximumsize(_:).md)
- [QLThumbnailGetTypeID()](quicklook/qlthumbnailgettypeid().md)