glIsQuery - OpenGL 4 Reference Pages

## 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.

## 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
`glIsQuery` | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔

## See Also

glBeginQuery, glDeleteQueries, `glEndQuery`, glGenQueries

## Copyright

Copyright © 2005 Addison-Wesley. 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. http://opencontent.org/openpub/.