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Determine if a name corresponds to a query object.

C Specification[edit]

GLboolean glIsQuery( GLuint id );


id - Specifies a value that may be the name of a query object.


 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.

Version Support[edit]

 glIsQuery  2.0+

See Also[edit]

 glBeginQuery , glDeleteQueries , glEndQuery , glGenQueries 


Copyright© 2005 Addison-Wesley. Copyright© 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.