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/*++ BUILD Version: 0004    // Increment this if a change has global effects

Copyright (c) 1985-95, Microsoft Corporation

Module Name:

    glu.h

Abstract:

    Procedure declarations, constant definitions and macros for the OpenGL
    Utility Library.

--*/

#ifndef __glu_h__
#ifndef __GLU_H__

#define __glu_h__
#define __GLU_H__

#include <GL/gl.h>

#ifdef __cplusplus
extern "C" {
#endif

/*
** Copyright 1991-1993, Silicon Graphics, Inc.
** All Rights Reserved.
** 
** This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics, Inc.;
** the contents of this file may not be disclosed to third parties, copied or
** duplicated in any form, in whole or in part, without the prior written
** permission of Silicon Graphics, Inc.
** 
** RESTRICTED RIGHTS LEGEND:
** Use, duplication or disclosure by the Government is subject to restrictions
** as set forth in subdivision (c)(1)(ii) of the Rights in Technical Data
** and Computer Software clause at DFARS 252.227-7013, and/or in similar or
** successor clauses in the FAR, DOD or NASA FAR Supplement. Unpublished -
** rights reserved under the Copyright Laws of the United States.
*/

/*
** Return the error string associated with a particular error code.
** This will return 0 for an invalid error code.
**
** The generic function prototype that can be compiled for ANSI or Unicode
** is defined as follows:
**
** LPCTSTR APIENTRY gluErrorStringWIN (GLenum errCode);
*/
#ifdef UNICODE
#define gluErrorStringWIN(errCode) ((LPCSTR)  gluErrorUnicodeStringEXT(errCode))
#else
#define gluErrorStringWIN(errCode) ((LPCWSTR) gluErrorString(errCode))
#endif

const GLubyte* APIENTRY gluErrorString (
    GLenum   errCode);