---
title: CFNetwork Constants
framework: cfnetwork
role: collectionGroup
role_heading: API Collection
path: cfnetwork/cfnetwork-constants
---

# CFNetwork Constants

Constants for use with CFNetwork.

## Topics

### Constants

- [kCFHTTPVersion3_0](cfnetwork/kcfhttpversion3_0.md)
- [kCFStreamNetworkServiceTypeAVStreaming](cfnetwork/kcfstreamnetworkservicetypeavstreaming.md)
- [kCFStreamNetworkServiceTypeResponsiveAV](cfnetwork/kcfstreamnetworkservicetyperesponsiveav.md)
- [kCFStreamNetworkServiceTypeResponsiveData](cfnetwork/kcfstreamnetworkservicetyperesponsivedata.md)
- [kCFStreamPropertyAllowConstrainedNetworkAccess](cfnetwork/kcfstreampropertyallowconstrainednetworkaccess.md)
- [kCFStreamPropertyAllowExpensiveNetworkAccess](cfnetwork/kcfstreampropertyallowexpensivenetworkaccess.md)
- [kCFStreamPropertyConnectionIsExpensive](cfnetwork/kcfstreampropertyconnectionisexpensive.md)

## See Also

### Reference

- [CFNetwork Data Types](cfnetwork/cfnetwork-data-types.md)
- [CFNetwork Enumerations](cfnetwork/cfnetwork-enumerations.md)