---
title: "glIsQueryEXT(_:)"
framework: OpenGL ES
role: symbol
role_heading: Function
platforms: [iOS 5.0+, iPadOS 5.0+, Mac Catalyst 5.0+, tvOS 9.0+]
path: "opengles/glisqueryext(_:)"
---

# glIsQueryEXT(_:)

## Declaration

```swift
func glIsQueryEXT(_ id: GLuint) -> GLboolean
```