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Core in version 4.5
Core since version 1.5

glIsQuery: determine if a name corresponds to a query object

Function Definition

 GLboolean glIsQuery(GLuint 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.

See Also

glGenQueries, glBeginQuery, glEndQuery, glDeleteQueries


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.