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glIsShader — Determines if a name corresponds to a shader object
GLboolean glIsShader(GLuint shader);
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.
glIsShader is available only if the
GL version is 2.0 or greater.
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.
GL_INVALID_OPERATION is generated if
glIsShader is executed between the
execution of
glBegin
and the corresponding execution of
glEnd.
glGetAttachedShaders with a valid program object
glGetShader
with arguments shader and a parameter to
be queried
glGetShaderInfoLog
with argument object
glGetShaderSource
with argument object
glAttachShader, glCompileShader, glCreateShader, glDeleteShader, glDetachShader, glLinkProgram, glShaderSource
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. http://opencontent.org/openpub/.