'\" t
.\"     Title: glGetBufferPointerv
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.76.1 <http://docbook.sf.net/>
.\"      Date: 05/30/2012
.\"    Manual: [FIXME: manual]
.\"    Source: [FIXME: source]
.\"  Language: English
.\"
.TH "GLGETBUFFERPOINTERV" "3G" "05/30/2012" "[FIXME: source]" "[FIXME: manual]"
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.SH "NAME"
glGetBufferPointerv \- return the pointer to a mapped buffer object\*(Aqs data store
.SH "C SPECIFICATION"
.HP \w'void\ glGetBufferPointerv('u
.BI "void glGetBufferPointerv(GLenum\ " "target" ", GLenum\ " "pname" ", GLvoid\ **\ " "params" ");"
.SH "PARAMETERS"
.PP
\fItarget\fR
.RS 4
Specifies the target buffer object\&. The symbolic constant must be
\fBGL_ARRAY_BUFFER\fR,
\fBGL_COPY_READ_BUFFER\fR,
\fBGL_COPY_WRITE_BUFFER\fR,
\fBGL_ELEMENT_ARRAY_BUFFER\fR,
\fBGL_PIXEL_PACK_BUFFER\fR,
\fBGL_PIXEL_UNPACK_BUFFER\fR,
\fBGL_TEXTURE_BUFFER\fR,
\fBGL_TRANSFORM_FEEDBACK_BUFFER\fR, or
\fBGL_UNIFORM_BUFFER\fR\&.
.RE
.PP
\fIpname\fR
.RS 4
Specifies the pointer to be returned\&. The symbolic constant must be
\fBGL_BUFFER_MAP_POINTER\fR\&.
.RE
.PP
\fIparams\fR
.RS 4
Returns the pointer value specified by
\fIpname\fR\&.
.RE
.SH "DESCRIPTION"
.PP

\fBglGetBufferPointerv\fR
returns pointer information\&.
\fIpname\fR
is a symbolic constant indicating the pointer to be returned, which must be
\fBGL_BUFFER_MAP_POINTER\fR, the pointer to which the buffer object\*(Aqs data store is mapped\&. If the data store is not currently mapped,
\fBNULL\fR
is returned\&.
\fIparams\fR
is a pointer to a location in which to place the returned pointer value\&.
.SH "NOTES"
.PP
If an error is generated, no change is made to the contents of
\fIparams\fR\&.
.PP
The initial value for the pointer is
\fBNULL\fR\&.
.SH "ERRORS"
.PP

\fBGL_INVALID_ENUM\fR
is generated if
\fItarget\fR
or
\fIpname\fR
is not an accepted value\&.
.PP

\fBGL_INVALID_OPERATION\fR
is generated if the reserved buffer object name 0 is bound to
\fItarget\fR\&.
.SH "SEE ALSO"
.PP

\fBglBindBuffer\fR(),
\fBglMapBuffer\fR()
.SH "COPYRIGHT"
.PP
Copyright
\(co
2005 Addison\-Wesley\&. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1\&.0, 8 June 1999\&.
\m[blue]\fBhttp://opencontent\&.org/openpub/\fR\m[]\&.