2005
Sams Publishing
glGetQueryiv
3G
glGetQueryiv
return parameters of a query object target
C Specification
void glGetQueryiv
GLenum target
GLenum pname
GLint * params
Parameters
target
Specifies a query object target.
Must be GL_SAMPLES_PASSED, GL_ANY_SAMPLES_PASSED,
GL_PRIMITIVES_GENERATED, GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN,
GL_TIME_ELAPSED, or GL_TIMESTAMP.
pname
Specifies the symbolic name of a query object target parameter.
Accepted values are GL_CURRENT_QUERY or GL_QUERY_COUNTER_BITS.
params
Returns the requested data.
Description
glGetQueryiv returns in params a selected parameter of the query object target
specified by target.
pname names a specific query object target parameter. When pname is
GL_CURRENT_QUERY, the name of the currently active query for target,
or zero if no query is active, will be placed in params.
If pname is GL_QUERY_COUNTER_BITS, the implementation-dependent number
of bits used to hold the result of queries for target is returned in params.
Notes
If an error is generated,
no change is made to the contents of params.
Errors
GL_INVALID_ENUM is generated if target or pname is not an
accepted value.
See Also
glGetQueryObject,
glIsQuery
Copyright
Copyright 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.
http://opencontent.org/openpub/.