glGetBufferParameteriv man page on Darwin
[printable version]
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 © 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)
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