Menus support the four standard control layouts (top to bottom, bottom to top, left to right and right to left). But also, the menu items in a menu also support the four different layouts (where each item in a given menu has to have the same layout). This means there is 16 combinations of layouts possible. This also means there is no separate menu bar class since a horizontal menu bar is just one of the many layouts supported. Figure 49 shows some of the layouts that menus support.