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glIsShader

Name

glIsShader — Determines if a name corresponds to a shader object

C Specification

GLboolean glIsShader( GLuint shader);
 

Parameters

shader

Specifies a potential shader object.

Description

glIsShader returns GL_TRUE if shader is the name of a shader object previously created with glCreateShader and not yet deleted with glDeleteShader. If shader is zero or a non-zero value that is not the name of a shader object, or if an error occurs, glIsShader returns GL_FALSE.

Notes

No error is generated if shader is not a valid shader object name.

A shader object marked for deletion with glDeleteShader but still attached to a program object is still considered a shader object and glIsShader will return GL_TRUE.

Associated Gets

glGetAttachedShaders with a valid program object

glGetShaderiv with arguments shader and a parameter to be queried

glGetShaderInfoLog with argument object

glGetShaderSource with argument object

API Version Support

OpenGL ES API Version
Function Name 2.0 3.0 3.1
glIsShader
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