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

# glGetVertexAttribfv(_:_:_:)

## Declaration

```swift
func glGetVertexAttribfv(_ index: GLuint, _ pname: GLenum, _ params: UnsafeMutablePointer<GLfloat>!)
```