---
title: csReserved4
framework: IOKit
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 18.4+, macOS 10.0+]
path: iokit/vdcommunicationrec/1567855-csreserved4
---

# csReserved4

## Declaration

```occ
UInt32 csReserved4;
```