'\" t
.\"     Title: glGetFragDataLocation
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: 01/03/2018
.\"    Manual: [FIXME: manual]
.\"    Source: [FIXME: source]
.\"  Language: English
.\"
.TH "GLGETFRAGDATALOCATIO" "3G" "01/03/2018" "[FIXME: source]" "[FIXME: manual]"
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.nh
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.\" * MAIN CONTENT STARTS HERE *
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.SH "NAME"
glGetFragDataLocation \- query the bindings of color numbers to user\-defined varying out variables
.SH "C SPECIFICATION"
.HP \w'GLint\ glGetFragDataLocation('u
.BI "GLint glGetFragDataLocation(GLuint\ " "program" ", const\ char\ *\ " "name" ");"
.SH "PARAMETERS"
.PP
\fIprogram\fR
.RS 4
The name of the program containing varying out variable whose binding to query
.RE
.PP
\fIname\fR
.RS 4
The name of the user\-defined varying out variable whose binding to query
.RE
.SH "DESCRIPTION"
.PP
\fBglGetFragDataLocation\fR
retrieves the assigned color number binding for the user\-defined varying out variable
\fIname\fR
for program
\fIprogram\fR\&.
\fIprogram\fR
must have previously been linked\&.
\fIname\fR
must be a null\-terminated string\&. If
\fIname\fR
is not the name of an active user\-defined varying out fragment shader variable within
\fIprogram\fR, \-1 will be returned\&.
.SH "ERRORS"
.PP
\fBGL_INVALID_OPERATION\fR
is generated if
\fIprogram\fR
is not the name of a program object\&.
.SH "VERSION SUPPORT"
.TS
allbox tab(:);
lB cB s s s s s s s s s s s
lB cB cB cB cB cB cB cB cB cB cB cB cB.
T{

T}:T{
\fBOpenGL Version\fR
T}
T{
\fBFunction / Feature Name\fR
T}:T{
\fB2\&.0\fR
T}:T{
\fB2\&.1\fR
T}:T{
\fB3\&.0\fR
T}:T{
\fB3\&.1\fR
T}:T{
\fB3\&.2\fR
T}:T{
\fB3\&.3\fR
T}:T{
\fB4\&.0\fR
T}:T{
\fB4\&.1\fR
T}:T{
\fB4\&.2\fR
T}:T{
\fB4\&.3\fR
T}:T{
\fB4\&.4\fR
T}:T{
\fB4\&.5\fR
T}
.T&
l c c c c c c c c c c c c.
T{
\fBglGetFragDataLocation\fR
T}:T{
\-
T}:T{
\-
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}
.TE
.sp 1
.SH "SEE ALSO"
.PP
\fBglCreateProgram\fR(),
\fBglBindFragDataLocation\fR()
.SH "COPYRIGHT"
.PP
Copyright
\(co
2010\-2014 Khronos Group\&. 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[]\&.
.SH "COPYRIGHT"
.br
Copyright \(co 2010-2014 Khronos Group
.br