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glgenqueries(3g) [osx man page]

GLGENQUERIES(3G)						    OpenGL 3.3							  GLGENQUERIES(3G)

glGenQueries - generate query object names C SPECIFICATION
void glGenQueries(GLsizei n, GLuint * ids); PARAMETERS
n Specifies the number of query object names to be generated. ids Specifies an array in which the generated query object names are stored. DESCRIPTION
glGenQueries returns n query object names in ids. There is no guarantee that the names form a contiguous set of integers; however, it is guaranteed that none of the returned names was in use immediately before the call to glGenQueries. Query object names returned by a call to glGenQueries are not returned by subsequent calls, unless they are first deleted with glDeleteQueries(). No query objects are associated with the returned query object names until they are first used by calling glBeginQuery(). ERRORS
GL_INVALID_VALUE is generated if n is negative. GL_INVALID_OPERATION is generated if glGenQueries is executed between the execution of glBeginQuery() and the corresponding execution of glEndQuery(). ASSOCIATED GETS
glIsQuery() SEE ALSO
glBeginQuery(), glDeleteQueries(), glEndQuery() COPYRIGHT
Copyright (C) 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. OpenGL 3.3 03/08/2011 GLGENQUERIES(3G)

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glQueryCounter - record the GL time into a query object after all previous commands have reached the GL server but have not yet necessarily executed. C SPECIFICATION
void glQueryCounter(GLuint id, GLenum target); PARAMETERS
id Specify the name of a query object into which to record the GL time. target Specify the counter to query. target must be GL_TIMESTAMP. DESCRIPTION
glQueryCounter causes the GL to record the current time into the query object named id. target must be GL_TIMESTAMP. The time is recorded after all previous commands on the GL client and server state and the framebuffer have been fully realized. When the time is recorded, the query result for that object is marked available. glQueryCounter timer queries can be used within a glBeginQuery() / glEndQuery() block where the target is GL_TIME_ELAPSED and it does not affect the result of that query object. NOTES
glQueryCounter is available only if the GL version is 3.3 or higher. ERRORS
GL_INVALID_OPERATION is generated if id is the name of a query object that is already in use within a glBeginQuery() / glEndQuery() block. GL_INVALID_VALUE is generated if id is not the name of a query object returned from a previous call to glGenQueries(). GL_INVALID_ENUM is generated if target is not GL_TIMESTAMP. SEE ALSO
glGenQueries(), glBeginQuery(), glEndQuery(), glDeleteQueries(), glGetQueryObject(), glGetQueryiv(), glGet() COPYRIGHT
Copyright (C) 2010 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. OpenGL 3.3 03/08/2011 GLQUERYCOUNTER(3G)
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