---
title: "glMapBufferRange(_:_:_:_:)"
framework: OpenGL ES
role: symbol
role_heading: Function
platforms: [iOS 7.0+, iPadOS 7.0+, Mac Catalyst 7.0+, tvOS 9.0+]
path: "opengles/glmapbufferrange(_:_:_:_:)"
---

# glMapBufferRange(_:_:_:_:)

## Declaration

```swift
func glMapBufferRange(_ target: GLenum, _ offset: GLintptr, _ length: GLsizeiptr, _ access: GLbitfield) -> UnsafeMutableRawPointer!
```