---
title: "glIsSyncAPPLE(_:)"
framework: OpenGL ES
role: symbol
role_heading: Function
platforms: [iOS 6.0+, iPadOS 6.0+, Mac Catalyst 6.0+, tvOS 9.0+]
path: "opengles/glissyncapple(_:)"
---

# glIsSyncAPPLE(_:)

## Declaration

```swift
func glIsSyncAPPLE(_ sync: GLsync!) -> GLboolean
```