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

# glMapBufferRangeEXT(_:_:_:_:)

## Declaration

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