glGetPointervEXT(3G)	       OpenGL Reference		  glGetPointervEXT(3G)

NAME    [Toc]    [Back]

     glGetPointervEXT -	return the address of a	buffer or vertex array

C SPECIFICATION    [Toc]    [Back]

     void glGetPointervEXT( GLenum pname,
			    GLvoid* *params )

PARAMETERS    [Toc]    [Back]

     pname   Specifies the pointer to be returned.  Symbolic constants
	     GL_VERTEX_ARRAY_POINTER_EXT, GL_NORMAL_ARRAY_POINTER_EXT,
	     GL_COLOR_ARRAY_POINTER_EXT, GL_INDEX_ARRAY_POINTER_EXT,
	     GL_TEXTURE_COORD_ARRAY_POINTER_EXT,
	     GL_EDGE_FLAG_ARRAY_POINTER_EXT, and
	     GL_INSTRUMENT_BUFFER_POINTER_SGIX are accepted.

     params  returns the pointer value specified by pname.

DESCRIPTION    [Toc]    [Back]

     glGetPointervEXT returns pointer information. pname is a symbolic
     constant indicating the pointer to	be returned, and params	is a pointer
     to	a location in which to place the returned data.

NOTES    [Toc]    [Back]

     The array pointers	are client side	state.

     glGetPointervEXT is part of the EXT_vertex_array extension, not part of
     the core GL command set. If GL_EXT_vertex_array is	included in the	string
     returned by glGetString, when called with argument	GL_EXTENSIONS,
     extension EXT_vertex_array	is supported.

     Similarly,	GL_INSTRUMENT_BUFFER_POINTER_SGIX is part of the
     SGIX_ir_instrument1 extension.

ERRORS    [Toc]    [Back]

     GL_INVALID_ENUM is	generated if pname is not an accepted value.

SEE ALSO    [Toc]    [Back]

     glArrayElementEXT,	glColorPointerEXT, glDrawArraysEXT,
     glEdgeFlagPointerEXT, glIndexPointerEXT, glInstrumentsBufferSGIX,
     glNormalPointerEXT, glTexCoordPointerEXT, glVertexPointerEXT


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