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# docs.GL

OpenGL 4
OpenGL 3
OpenGL ES 3
OpenGL ES 2

# glIsFramebuffer

## Name

glIsFramebuffer — determine if a name corresponds to a framebuffer object

## C Specification

`GLboolean glIsFramebuffer(` | GLuint framebuffer`)`;

## Parameters

`framebuffer`

  Specifies a value that may be the name of a framebuffer object.

## Description

`glIsFramebuffer` returns `GL_TRUE` if `framebuffer` is currently the name of a framebuffer object. If `framebuffer` is zero, or if `framebuffer` is not the name of a framebuffer object, or if an error occurs, `glIsFramebuffer` returns `GL_FALSE`. If `framebuffer` is a name returned by glGenFramebuffers, by that has not yet been bound through a call to glBindFramebuffer, then the name is not a framebuffer object and `glIsFramebuffer` returns `GL_FALSE`.

## Version Support

| OpenGL Version
--- | ---
Function / Feature Name | 2.0 | 2.1 | 3.0 | 3.1 | 3.2 | 3.3 | 4.0 | 4.1 | 4.2 | 4.3 | 4.4 | 4.5
`glIsFramebuffer` | - | - | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔

## See Also

glGenFramebuffers, glBindFramebuffer, glDeleteFramebuffers

## Copyright

Copyright © 2010-2014 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. https://opencontent.org/openpub/.

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