---
title: SKDocumentGetTypeID()
framework: Core Services
role: symbol
role_heading: Function
platforms: [macOS 10.3+]
path: coreservices/1448891-skdocumentgettypeid
---

# SKDocumentGetTypeID()

Gets the type identifier for Search Kit document URL objects.

## Declaration

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

## Return Value

Return Value A CFTypeID object containing the type identifier for the document URL object (of type SKDocument).

## Discussion

Discussion Search Kit represents document URL objects with the SKDocument opaque type. If your code needs to determine whether a particular data type is a document URL object, you can use this function along with the CFGetTypeID(_:) function and perform a comparison. Never hard-code the document URL object type ID because it can change from one release of macOS to another.

## See Also

### Working with Documents and Terms

- [SKDocumentCreateWithURL(_:)](coreservices/1442564-skdocumentcreatewithurl.md)
- [SKDocumentCreate(_:_:_:)](coreservices/1443212-skdocumentcreate.md)
- [SKDocumentCopyURL(_:)](coreservices/1449624-skdocumentcopyurl.md)
- [SKDocumentGetName(_:)](coreservices/1442657-skdocumentgetname.md)
- [SKDocumentGetParent(_:)](coreservices/1444449-skdocumentgetparent.md)
- [SKDocumentGetSchemeName(_:)](coreservices/1448262-skdocumentgetschemename.md)
- [SKIndexCopyDocumentForDocumentID(_:_:)](coreservices/1442760-skindexcopydocumentfordocumentid.md)
- [SKIndexCopyInfoForDocumentIDs(_:_:_:_:_:)](coreservices/1445499-skindexcopyinfofordocumentids.md)
- [SKIndexCopyDocumentRefsForDocumentIDs(_:_:_:_:)](coreservices/1445305-skindexcopydocumentrefsfordocume.md)
- [SKIndexCopyDocumentURLsForDocumentIDs(_:_:_:_:)](coreservices/1443501-skindexcopydocumenturlsfordocume.md)
- [SKIndexCopyDocumentIDArrayForTermID(_:_:)](coreservices/1448003-skindexcopydocumentidarrayforter.md)
- [SKIndexCopyTermIDArrayForDocumentID(_:_:)](coreservices/1446868-skindexcopytermidarrayfordocumen.md)
- [SKIndexCopyTermStringForTermID(_:_:)](coreservices/1442802-skindexcopytermstringfortermid.md)
- [SKIndexGetTermIDForTermString(_:_:)](coreservices/1448558-skindexgettermidfortermstring.md)
- [SKIndexSetDocumentProperties(_:_:_:)](coreservices/1444576-skindexsetdocumentproperties.md)
- [SKIndexCopyDocumentProperties(_:_:)](coreservices/1449500-skindexcopydocumentproperties.md)
- [SKIndexGetDocumentState(_:_:)](coreservices/1443396-skindexgetdocumentstate.md)
- [SKIndexGetDocumentTermCount(_:_:)](coreservices/1448341-skindexgetdocumenttermcount.md)
- [SKIndexGetDocumentTermFrequency(_:_:_:)](coreservices/1447537-skindexgetdocumenttermfrequency.md)
- [SKIndexGetTermDocumentCount(_:_:)](coreservices/1444015-skindexgettermdocumentcount.md)
- [SKIndexGetDocumentID(_:_:)](coreservices/1444437-skindexgetdocumentid.md)