mojave man page for glgetbufferparameteriv

GLGETBUFFERPARAMETER(3G)					    OpenGL 3.3						  GLGETBUFFERPARAMETER(3G)

NAME
       glGetBufferParameteriv - return parameters of a buffer object

C SPECIFICATION
       void glGetBufferParameteriv(GLenum target, GLenum value, GLint * data);

PARAMETERS
       target
	   Specifies the target buffer object. The symbolic constant must be GL_ARRAY_BUFFER, GL_ELEMENT_ARRAY_BUFFER, GL_PIXEL_PACK_BUFFER, or
	   GL_PIXEL_UNPACK_BUFFER.

       value
	   Specifies the symbolic name of a buffer object parameter. Accepted values are GL_BUFFER_ACCESS, GL_BUFFER_MAPPED, GL_BUFFER_SIZE, or
	   GL_BUFFER_USAGE.

       data
	   Returns the requested parameter.

DESCRIPTION
       glGetBufferParameteriv returns in data a selected parameter of the buffer object specified by target.

       value names a specific buffer object parameter, as follows:

       GL_BUFFER_ACCESS

	   params returns the access policy set while mapping the buffer object. The initial value is GL_READ_WRITE.

       GL_BUFFER_MAPPED

	   params returns a flag indicating whether the buffer object is currently mapped. The initial value is GL_FALSE.

       GL_BUFFER_SIZE

	   params returns the size of the buffer object, measured in bytes. The initial value is 0.

       GL_BUFFER_USAGE

	   params returns the buffer object's usage pattern. The initial value is GL_STATIC_DRAW.

NOTES
       If an error is generated, no change is made to the contents of data.

ERRORS
       GL_INVALID_ENUM is generated if target or value is not an accepted value.

       GL_INVALID_OPERATION is generated if the reserved buffer object name 0 is bound to target.

SEE ALSO
       glBindBuffer(), glBufferData(), glMapBuffer(), glUnmapBuffer()

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

OpenGL 3.3							    03/08/2011						  GLGETBUFFERPARAMETER(3G)