GLISQUERY(3G)

NAME
glIsQuery - determine if a name corresponds to a query object

C SPECIFICATION

GLboolean glIsQuery(GLuint id);

PARAMETERS

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.

NOTES

glIsQuery is available only if the GL version is 1.5 or greater.

ERRORS

GL_INVALID_OPERATION is generated if glIsQuery is executed between the execution of glBegin() and the corresponding execution of glEnd().

SEE ALSO

glBeginQuery(), glDeleteQueries(), glEndQuery(), glGenQueries()

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/.