---
title: csRangeReserved
framework: IOKit
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 18.4+, macOS 10.0+]
path: iokit/vddisplaytimingrangerec/1567525-csrangereserved
---

# csRangeReserved

## Declaration

```occ
UInt32 csRangeReserved;
```