---
title: horizontalBlanking
framework: IOKit
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 13.0+, macOS 10.3+]
path: iokit/iodetailedtiminginformationv1/1505050-horizontalblanking
---

# horizontalBlanking

## Declaration

```occ
UInt32 horizontalBlanking;
```