'\" t
.\"     Title: glQueryCounter
.\"    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 "GLQUERYCOUNTER" "3G" "01/03/2018" "[FIXME: source]" "[FIXME: manual]"
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.SH "NAME"
glQueryCounter \- record the GL time into a query object after all previous commands have reached the GL server but have not yet necessarily executed\&.
.SH "C SPECIFICATION"
.HP \w'void\ glQueryCounter('u
.BI "void glQueryCounter(GLuint\ " "id" ", GLenum\ " "target" ");"
.SH "PARAMETERS"
.PP
\fIid\fR
.RS 4
Specify the name of a query object into which to record the GL time\&.
.RE
.PP
\fItarget\fR
.RS 4
Specify the counter to query\&.
\fItarget\fR
must be
\fBGL_TIMESTAMP\fR\&.
.RE
.SH "DESCRIPTION"
.PP
\fBglQueryCounter\fR
causes the GL to record the current time into the query object named
\fIid\fR\&.
\fItarget\fR
must be
\fBGL_TIMESTAMP\fR\&. The time is recorded after all previous commands on the GL client and server state and the framebuffer have been fully realized\&. When the time is recorded, the query result for that object is marked available\&.
\fBglQueryCounter\fR
timer queries can be used within a
\fBglBeginQuery\fR()
/

\fBglEndQuery\fR
block where the target is
\fBGL_TIME_ELAPSED\fR
and it does not affect the result of that query object\&.
.SH "NOTES"
.PP
\fBglQueryCounter\fR
is available only if the GL version is 3\&.3 or higher\&.
.SH "ERRORS"
.PP
\fBGL_INVALID_OPERATION\fR
is generated if
\fIid\fR
is the name of a query object that is already in use within a
\fBglBeginQuery\fR()
/

\fBglEndQuery\fR
block\&.
.PP
\fBGL_INVALID_VALUE\fR
is generated if
\fIid\fR
is not the name of a query object returned from a previous call to
\fBglGenQueries\fR()\&.
.PP
\fBGL_INVALID_ENUM\fR
is generated if
\fItarget\fR
is not
\fBGL_TIMESTAMP\fR\&.
.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{
\fBglQueryCounter\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
\fBglGenQueries\fR(),
\fBglBeginQuery\fR(),

\fBglEndQuery\fR,
\fBglDeleteQueries\fR(),
\fBglGetQueryObject\fR(),
\fBglGetQueryiv\fR(),
\fBglGet\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