A more sophisticated container is a box. It allows you to place, or pack,
more than one widget inside a simple container. There are horizontal
(GtkHBox) and vertical (GtkVBox) boxes that pack their widgets
correspondingly. First, create a new box:
<?php $box =& new GtkHBox($homogenous = false, $spacing = 0); ?>
Then place some widgets into it using either pack_start() method (packs
left-to-right for HBox and top-to-bottom for VBox) or pack_end() method
(vice versa).
<?php
$box->pack_start($child, $expand = true, $fill = true, $padding = 0);
?>
You can nest the boxes to any degree, thus creating complex containment
patterns.
