=head1 NAME
IUP::GL::BackgroundBox - [GUI element] GL-based background box
=head1 DESCRIPTION
XXX-TODO: missing doc
=head1 SEE ALSO
The original doc: L<iupglbackgroundbox.html|http://www.tecgraf.puc-rio.br/iup/en/ctrl/iupglbackgroundbox.html>
=cut