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GLGETDEBUGMESSAGELOG(3G)		  OpenGL Manual 		 GLGETDEBUGMESSAGELOG(3G)

NAME
       glGetDebugMessageLog - retrieve messages from the debug message log

C SPECIFICATION
       GLuint glGetDebugMessageLog(GLuint count, GLsizei bufSize, GLenum *sources, Glenum *types,
				   GLuint *ids, GLenum *severities, GLsizei *lengths,
				   GLchar *messageLog);

PARAMETERS
       count
	   The number of debug messages to retrieve from the log.

       bufSize
	   The size of the buffer whose address is given by messageLog.

       sources
	   The address of an array of variables to receive the sources of the retrieved messages.

       types
	   The address of an array of variables to receive the types of the retrieved messages.

       ids
	   The address of an array of unsigned integers to receive the ids of the retrieved
	   messages.

       severities
	   The address of an array of variables to receive the severites of the retrieved
	   messages.

       lengths
	   The address of an array of variables to receive the lengths of the received messages.

       messageLog
	   The address of an array of characters that will receive the messages.

DESCRIPTION
       glGetDebugMessageLog retrieves messages from the debug message log. A maximum of count
       messages are retrieved from the log. If sources is not NULL then the source of each
       message is written into up to count elements of the array. If types is not NULL then the
       type of each message is written into up to count elements of the array. If id is not NULL
       then the identifier of each message is written into up to count elements of the array. If
       severities is not NULL then the severity of each message is written into up to count
       elements of the array. If lengths is not NULL then the length of each message is written
       into up to count elements of the array.

       messageLog specifies the address of a character array into which the debug messages will
       be written. Each message will be concatenated onto the array starting at the first element
       of messageLog.  bufSize specifies the size of the array messageLog. If a message will not
       fit into the remaining space in messageLog then the function terminates and returns the
       number of messages written so far, which may be zero.

       If glGetDebugMessageLog returns zero then no messages are present in the debug log, or
       there was not enough space in messageLog to retrieve the first message in the queue. If
       messageLog is NULL then no messages are written and the value of bufSize is ignored.

NOTES
       Although debug messages may be enabled in a non-debug context, the quantity and detail of
       such messages may be substantially inferior to those in a debug context. In particular, a
       valid implementation of the debug message queue in a non-debug context may produce no
       messages at all.

ERRORS
       GL_INVALID_VALUE is generated if count or bufSize is negative.

ASSOCIATED GETS
       glGet() with argument GL_DEBUG_LOGGED_MESSAGES

       glGet() with argument GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH

       glGet() with argument GL_MAX_DEBUG_MESSAGE_LENGTH

       glGet() with argument GL_MAX_DEBUG_LOGGED_MESSAGES

SEE ALSO
       glDebugMessageInsert(), glDebugMessageCallback(), glDebugMessageControl().

COPYRIGHT
       Copyright (C) 2012 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.
       http://opencontent.org/openpub/.

AUTHORS
       opengl.org

opengl.org				    06/10/2014			 GLGETDEBUGMESSAGELOG(3G)
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