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

# glReadPixels(_:_:_:_:_:_:_:)

## Declaration

```swift
func glReadPixels(_ x: GLint, _ y: GLint, _ width: GLsizei, _ height: GLsizei, _ format: GLenum, _ type: GLenum, _ pixels: UnsafeMutableRawPointer!)
```