glIsShader 3G glIsShader Determines if a name corresponds to a shader object GLboolean glIsShader GLuint shader shader Specifies a potential shader object. 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/.