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

# glIsProgram(_:)

## Declaration

```swift
func glIsProgram(_ program: GLuint) -> GLboolean
```