The system automatically highlights menu items on menus as the user selects them. However, highlighting can be explicitly added or removed from a menu name on the menu bar by using the HiliteMenuItem function. This function has no effect on menu items on menus. When HiliteMenuItem is used to highlight a menu name, though, the name only appears to be selected. If the user presses the enter key, the highlighted item is not chosen. This feature might be useful in, for example, a training application that demonstrates the use of menus.