---
title: csReserved3
framework: IOKit
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 18.4+, macOS 10.0+]
path: iokit/vdcommunicationrec/1567950-csreserved3
---

# csReserved3

## Declaration

```occ
UInt32 csReserved3;
```