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# docs.GL

OpenGL 4
OpenGL 3
OpenGL 2
OpenGL ES 3

# glIsQuery

## Name

glIsQuery — determine if a name corresponds to a query object

## C Specification

`GLboolean glIsQuery(`GLuint id`)`;

## Parameters

`id`

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

## Description

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

A name returned by glGenQueries, but not yet associated with a query object by calling glBeginQuery, is not the name of a query object.

## See Also

glBeginQuery, glDeleteQueries, glEndQuery, glGenQueries

## 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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