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# docs.GL

OpenGL 4
OpenGL 3
OpenGL 2
OpenGL ES 3
OpenGL ES 2

# glIsBuffer

## Name

glIsBuffer — determine if a name corresponds to a buffer object

## C Specification

`GLboolean glIsBuffer(` | GLuint | buffer`)`;

## Parameters

`buffer`

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

## Description

`glIsBuffer` returns `GL_TRUE` if `buffer` is currently the name of a buffer object. If `buffer` is zero, or is a non-zero value that is not currently the name of a buffer object, or if an error occurs, `glIsBuffer` returns `GL_FALSE`.

A name returned by glGenBuffers, but not yet associated with a buffer object by calling glBindBuffer, is not the name of a buffer object.

## Notes

`glIsBuffer` is available only if the GL version is 1.5 or greater.

## Errors

`GL_INVALID_OPERATION` is generated if `glIsBuffer` is executed between the execution of glBegin and the corresponding execution of glEnd.

## See Also

glBindBuffer, glDeleteBuffers, glGenBuffers, glGet

## Copyright

Copyright © 2005 Addison-Wesley. 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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