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# docs.GL

OpenGL 4
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# glDeleteShader

## Name

glDeleteShader — delete a shader object

## C Specification

`void glDeleteShader(` | GLuint shader`)`;

## Parameters

`shader`

  Specifies the shader object to be deleted.

## Description

`glDeleteShader` frees the memory and invalidates the name associated with the shader object specified by `shader`. This command effectively undoes the effects of a call to glCreateShader.

If a shader object to be deleted is attached to a program object, it will be flagged for deletion, but it will not be deleted until it is no longer attached to any program object, for any rendering context (i.e., it must be detached from wherever it was attached before it will be deleted). A value of 0 for `shader` will be silently ignored.

To determine whether an object has been flagged for deletion, call glGetShaderiv with arguments `shader` and `GL_DELETE_STATUS`.

## Errors

`GL_INVALID_VALUE` is generated if `shader` is not a value generated by OpenGL.

## Associated Gets

glGetAttachedShaders with the program object to be queried

glGetShaderiv with arguments `shader` and `GL_DELETE_STATUS`

glIsShader

## Tutorials

## See Also

glCreateProgram, glCreateShader, glDetachShader, glUseProgram

## Copyright

Copyright © 2003-2005 3Dlabs Inc. Ltd. 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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