glGetActiveUniformBlockName — retrieve the name of an active uniform block
Specifies the name of a program containing the uniform block.
Specifies the index of the uniform block within
Specifies the size of the buffer addressed by
Specifies the address of a variable to receive the number of characters that were written to
Specifies the address an array of characters to receive the name of the uniform block at
glGetActiveUniformBlockName retrieves the name of the active uniform block at
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
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
excluding the nul terminator, is returned in
NULL, no length is returned.
bufSize contains the maximum number of characters (including the nul terminator) that will be written into
If an error occurs, nothing will be written to
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
GL_ACTIVE_UNIFORM_BLOCKS or is not the index of an active uniform block in
Copyright © 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. https://opencontent.org/openpub/.