---
title: mReserved2
framework: IOKit
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 18.4+, macOS 10.7+]
path: iokit/iovideostreamdescription/1503956-mreserved2
---

# mReserved2

## Declaration

```occ
UInt32 mReserved2;
```