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GLGETACTIVEUNIFORMBL(3G)		  OpenGL Manual 		 GLGETACTIVEUNIFORMBL(3G)

NAME
       glGetActiveUniformBlockName - retrieve the name of an active uniform block

C SPECIFICATION
       void glGetActiveUniformBlockName(GLuint program, GLuint uniformBlockIndex,
					GLsizei bufSize, GLsizei *length,
					GLchar *uniformBlockName);

PARAMETERS
       program
	   Specifies the name of a program containing the uniform block.

       uniformBlockIndex
	   Specifies the index of the uniform block within program.

       bufSize
	   Specifies the size of the buffer addressed by uniformBlockName.

       length
	   Specifies the address of a variable to receive the number of characters that were
	   written to uniformBlockName.

       uniformBlockName
	   Specifies the address an array of characters to receive the name of the uniform block
	   at uniformBlockIndex.

DESCRIPTION
       glGetActiveUniformBlockName retrieves the name of the active uniform block at
       uniformBlockIndex within program.

       program must be the name of a program object for which the command glLinkProgram() must
       have been called in the past, although it is not required that glLinkProgram() must have
       succeeded. The link could have failed because the number of active uniforms exceeded the
       limit.

       uniformBlockIndex is an active uniform block index of program, and must be less than the
       value of GL_ACTIVE_UNIFORM_BLOCKS.

       Upon success, the name of the uniform block identified by unifomBlockIndex is returned
       into uniformBlockName. The name is nul-terminated. The actual number of characters written
       into uniformBlockName, excluding the nul terminator, is returned in length. If length is
       NULL, no length is returned.

       bufSize contains the maximum number of characters (including the nul terminator) that will
       be written into uniformBlockName.

       If an error occurs, nothing will be written to uniformBlockName or length.

ERRORS
       GL_INVALID_OPERATION is generated if program is not the name of a program object for which
       glLinkProgram() has been called in the past.

       GL_INVALID_VALUE is generated if uniformBlockIndex is greater than or equal to the value
       of GL_ACTIVE_UNIFORM_BLOCKS or is not the index of an active uniform block in program.

NOTES
       glGetActiveUniformBlockName is available only if the GL version is 3.1 or greater.

SEE ALSO
       glGetActiveUniformBlock(), glGetUniformBlockIndex()

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.
       http://opencontent.org/openpub/.

AUTHORS
       opengl.org

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