glGetBufferParameteriv : PyOpenGL 3.0.2 GL Man Pages

return parameters of a buffer object

Signature

glGetBufferParameteri64v( GLenum ( target ) , GLenum ( value ) , GLint64 * ( data ) )-> void

glGetBufferParameteri64v( target , pname , params )

glGetBufferParameteriv( GLenum ( target ) , GLenum ( value ) , GLint * ( data ) )-> void

glGetBufferParameteriv( target , pname )

Parameters

Variables	Description
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 .

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/ .

glGetBufferParameteriv