A horizontal box for organizing child widgets.
The GtkHBox container is designed to organize child widgets along a single row, allocating the same height to all children. This overrides any child requisition size, and child widgets that take up less than the allocated space are horizontally centered by default within that space.
GtkHBox and GtkVBox, in combination, are the most commonly used packing widgets.For sample code on how to use both, check the GtkVBox constructor entry.
GtkHBox ([bool homogeneous = false [, int spacing = 0]]);-- Creates a container that arranges widgets horizontally.