_C_ License Applicability. Except to the extent portions of this file are
_C_ made subject to an alternative license as permitted in the SGI Free
_C_ Software License B, Version 1.1 (the "License"), the contents of this
_C_ file are subject only to the provisions of the License. You may not use
_C_ this file except in compliance with the License. You may obtain a copy
_C_ of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
_C_ Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
_C_ 
_C_ http://oss.sgi.com/projects/FreeB
_C_ 
_C_ Note that, as provided in the License, the Software is distributed on an
_C_ "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
_C_ DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
_C_ CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
_C_ PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
_C_ 
_C_ Original Code. The Original Code is: OpenGL Sample Implementation,
_C_ Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
_C_ Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
_C_ Copyright in any portions created by third parties is as indicated
_C_ elsewhere herein. All Rights Reserved.
_C_ 
_C_ Additional Notice Provisions: The application programming interfaces
_C_ established by SGI in conjunction with the Original Code are The
_C_ OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
_C_ April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
_C_ 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
_C_ Window System(R) (Version 1.3), released October 19, 1998. This software
_C_ was created using the OpenGL(R) version 1.2.1 Sample Implementation
_C_ published by SGI, but has not been independently verified as being
_C_ compliant with the OpenGL(R) version 1.2.1 Specification.
_C_
_C_ The first character in this file must be an '_'!
_C_ Anything on a line after _C_ is ignored
_define(_filters,eqn|tbl)_C_
_C_      eqn is automatically replaced with neqn for nroff
_header(ClientActiveTextureARB, select active texture unit)
_names(ClientActiveTextureARB)
.EQ
delim $$
.EN
.SH PARAMETERS
_phead(_param1)
Specifies which texture unit to make active. The number
of texture units is implementation dependent, but must be at least
two. _param1 must be one of _arbconstidx(TEXTURE)
where 0 \(<= $ i $ < _arbconst(MAX_TEXTURE_UNITS), which is an
implementation-dependent value.  The initial value is 
_arbconst(TEXTURE0).
.SH DESCRIPTION
_cmnd selects the vertex array client state parameters to be modified by
_cmnd(TexCoordPointer), and enabled or disabled with
_cmnd(EnableClientState) or _cmnd(DisableClientState), respectively,
when called with a parameter of _const(TEXTURE_COORD_ARRAY).
.SH NOTES
_cmnd is supported only if _arbstring(multitexture) is included in the
string returned by _cmnd(GetString) when called with the argument
_const(EXTENSIONS).
.P
_cmnd sets _arbconst(CLIENT_ACTIVE_TEXTURE) to the active texture unit.
.SH ERRORS 
_const(INVALID_ENUM) is generated if _param1 is not one of
_arbconstidx(TEXTURE), where
0 \(<= $ i $ < _arbconst(MAX_TEXTURE_UNITS).
.SH SEE ALSO
_cmnd(ActiveTextureARB),
_cmnd(DisableClientState),
_cmnd(EnableClientState),
_cmnd(MultiTexCoordARB),
_cmnd(TexCoordPointer)