GLAPI/glIsQuery: Difference between revisions
< GLAPI
4.0 API. |
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== Function Definition == | == Function Definition == | ||
GLboolean '''glIsQuery'''(GLuint | GLboolean '''glIsQuery'''(GLuint {{param|id}}); | ||
; id | ; id | ||
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== Description == | == Description == | ||
'''glIsQuery''' returns {{ | '''glIsQuery''' returns {{enum|GL_TRUE}} if {{param|id}} is currently the name of a query object. If {{param|id}} is zero, or is a non-zero value that is not currently the name of a query object, or if an error occurs, '''glIsQuery''' returns {{enum|GL_FALSE}}. | ||
A name returned by | A name returned by {{apifunc|glGenQueries}}, but not yet associated with a query object by calling {{apifunc|glBeginQuery}}, is not the name of a query object. | ||
== See Also == | == See Also == | ||
{{apifunc|glGenQueries}}, {{apifunc|glBeginQuery}}, {{apifunc|glEndQuery}}, {{apifunc|glDeleteQueries}} | |||
== Copyright == | == Copyright == | ||
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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/ http://opencontent.org/openpub/]. | 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/ http://opencontent.org/openpub/]. | ||
[[Category:API Reference | [[Category:Core API Ref Queries and Timers|IsQuery]] | ||
[[Category:Core API Reference|IsQuery]] | |||
Latest revision as of 01:51, 27 September 2012
| Core in version | 4.6 | |
|---|---|---|
| Core since version | 1.5 | |
glIsQuery: determine if a name corresponds to a query object
Function Definition
GLboolean glIsQuery(GLuint id);
- id
- Specifies a value that may be the name of a query object.
Description
glIsQuery returns GL_TRUE if id is currently the name of a query object. If id is zero, or is a non-zero value that is not currently the name of a query object, or if an error occurs, glIsQuery returns GL_FALSE.
A name returned by glGenQueries, but not yet associated with a query object by calling glBeginQuery, is not the name of a query object.
See Also
glGenQueries, glBeginQuery, glEndQuery, glDeleteQueries
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/.