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

# glAttachShader(_:_:)

## Declaration

```swift
func glAttachShader(_ program: GLuint, _ shader: GLuint)
```