---
title: keyIndex
framework: Application Services
role: symbol
role_heading: Instance Property
platforms: [macOS 10.0+]
path: applicationservices/cmconcatprofileset/1560608-keyindex
---

# keyIndex

A zero-based index into the array of profile references identifying the profile whose CMM is used for the entire session. The profile’s `CMMType` field identifies the CMM.

## Declaration

```occ
UInt16 keyIndex;
```