---
title: kIOVideoFeatureControlClassIDZoom
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.12+]
path: kernel/1646200-anonymous/kiovideofeaturecontrolclassidzoom
---

# kIOVideoFeatureControlClassIDZoom

## Declaration

```occ
kIOVideoFeatureControlClassIDZoom = 'zoom'
```

## Discussion

Discussion A IOVideoFeatureControl that controls the zoom. The units for the control's absolute value are power where 1 is the wide end.