glIsTransformFeedback - OpenGL ES 3.2 Reference Pages

## Name

glIsTransformFeedback — determine if a name corresponds to a transform feedback object

## C Specification

`GLboolean glIsTransformFeedback(` | GLuint id`)`;

## Parameters

`id`

  Specifies a value that may be the name of a transform feedback object.

## Description

`glIsTransformFeedback` returns `GL_TRUE` if `id` is currently the name of a transform feedback object. If `id` is zero, or if `id` is not the name of a transform feedback object, or if an error occurs, `glIsTransformFeedback` returns `GL_FALSE`. If `id` is a name returned by glGenTransformFeedbacks, but that has not yet been bound through a call to glBindTransformFeedback, then the name is not a transform feedback object and `glIsTransformFeedback` returns `GL_FALSE`.

## API Version Support

| OpenGL ES API Version
--- | ---
Function Name | 2.0 | 3.0 | 3.1 | 3.2
glIsTransformFeedback | - | ✔ | ✔ | ✔

## See Also

glGenTransformFeedbacks, glBindTransformFeedback, glDeleteTransformFeedbacks

## Copyright

Copyright © 2010-2015 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/.