---
title: "SKIndexSetDocumentProperties(_:_:_:)"
framework: Core Services
role: symbol
role_heading: Function
platforms: [macOS 10.3+]
path: coreservices/1444576-skindexsetdocumentproperties
---

# SKIndexSetDocumentProperties(_:_:_:)

Sets the application-defined properties of a document URL object (of type SKDocument).

## Declaration

```swift
func SKIndexSetDocumentProperties(_ inIndex: SKIndex!, _ inDocument: SKDocument!, _ inProperties: CFDictionary!)
```

## Parameters

- `inIndex`: An index containing the document URL object whose properties you want to set.
- `inDocument`: The document URL object whose properties you want to set.
- `inProperties`: A CFDictionary object containing the properties to apply to the document URL object.

## Discussion

Discussion Search Kit document URL objects (of type SKDocument) can have an optional, application-defined properties dictionary to hold any information you’d like to associate with the document represented by a document URL object—such as timestamp, keywords, and so on. Use SKIndexSetDocumentProperties to persistently set application-defined properties for a document URL object in an index. This function replaces a document URL object’s existing properties dictionary with the new one. To obtain a copy of a document URL object’s properties dictionary, use SKIndexCopyDocumentProperties(_:_:). Special Considerations You must set any desired properties on a document URL object after adding the document URL object to an index. Adding a document URL object to an index clears the object’s preexisting properties.

## 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)
- [SKDocumentGetTypeID()](coreservices/1448891-skdocumentgettypeid.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)
- [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)