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

# glCopyTextureLevelsAPPLE(_:_:_:_:)

## Declaration

```swift
func glCopyTextureLevelsAPPLE(_ destinationTexture: GLuint, _ sourceTexture: GLuint, _ sourceBaseLevel: GLint, _ sourceLevelCount: GLsizei)
```