Name

glGetBufferParameteriv — return parameters of a buffer object

C Specification

void glGetBufferParameteriv(GLenum target,
 GLenum pname,
 GLint * params);
 

Parameters

target

Specifies the target buffer object. The symbolic constant must be GL_ARRAY_BUFFER or GL_ELEMENT_ARRAY_BUFFER.

pname

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

params

Returns the requested parameter.

Description

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

pname names a specific buffer object parameter, as follows:

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 params.

Errors

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

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

See Also

glBufferData, glBindBuffer

Copyright

Copyright © 2003-2004 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.