CFURLSetResourcePropertyForKey(_:_:_:_:)

Declaration

func CFURLSetResourcePropertyForKey(_ url: CFURL!, _ key: CFString!, _ propertyValue: CFTypeRef!, _ error: UnsafeMutablePointer<Unmanaged<CFError>?>!) -> Bool

Parameters

• url:

  The URL.

• key:

  The name of one of the URL’s resource properties.

• propertyValue:

  The value for the resource property defined by key.

• error:

  The error that occurred if the resource value could not be set.

Return Value

true if the resource property named key is successfully set to value; otherwise, false.

Discussion

This function synchronously writes the new resource value out to disk. Attempts to set a read-only resource property or to set a resource property that is not supported by the resource are ignored and are not considered errors.

If an error occurs, this method returns false and populates the object pointer referenced by error with additional information.

See Also

Related Documentation

• CFURL

Getting and Setting File System Resource Properties

• CFURLClearResourcePropertyCache(_:)
• CFURLClearResourcePropertyCacheForKey(_:_:)
• CFURLCopyResourcePropertiesForKeys(_:_:_:)
• CFURLCopyResourcePropertyForKey(_:_:_:_:)
• CFURLCreateResourcePropertiesForKeysFromBookmarkData(_:_:_:)
• CFURLCreateResourcePropertyForKeyFromBookmarkData(_:_:_:)
• CFURLSetResourcePropertiesForKeys(_:_:_:)
• CFURLSetTemporaryResourcePropertyForKey(_:_:_:)