---
title: "glIsRenderbuffer(_:)"
framework: OpenGL ES
role: symbol
role_heading: Function
platforms: [iOS 3.0+, iPadOS 3.0+, Mac Catalyst 3.0+, tvOS 9.0+]
path: "opengles/glisrenderbuffer(_:)"
---

# glIsRenderbuffer(_:)

## Declaration

```swift
func glIsRenderbuffer(_ renderbuffer: GLuint) -> GLboolean
```