---
title: QLThumbnailGetTypeID()
framework: quicklook
role: symbol
role_heading: Function
path: quicklook/qlthumbnailgettypeid()
---

# QLThumbnailGetTypeID()

Returns the type identifier for the thumbnail’s opaque type.

## Declaration

```swift
func QLThumbnailGetTypeID() -> CFTypeID
```

## Return Value

Return Value The type identifier for the thumbnail’s opaque type.

## 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)
- [QLThumbnailIsCancelled(_:)](quicklook/qlthumbnailiscancelled(_:).md)