---
title: kIOFBDisplayState_AlreadyActive
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.12.4+]
path: kernel/2823947-anonymous/kiofbdisplaystate_alreadyactive
---

# kIOFBDisplayState_AlreadyActive

## Declaration

```occ
kIOFBDisplayState_AlreadyActive = (1 << 0)
```