## class Fl_Menu_Bar

### Class Hierarchy

    Fl_Menu_
       |
       +----Fl_Menu_Bar

### Include Files

    #include <FL/Fl_Menu_Bar.H>

### Description

This widget provides a standard menubar interface. Usually you will put this widget along the top edge of your window. The height of the widget should be 30 for the menu titles to draw correctly with the default font.

The items on the bar and the menus they bring up are defined by a single `Fl_Menu_Item` array. Because a `Fl_Menu_Item` array defines a hierarchy, the top level menu defines the items in the menubar, while the submenus define the pull-down menus. Sub-sub menus and lower pop up to the right of the submenus.

If there is an item in the top menu that is not a title of a submenu, then it acts like a "button" in the menubar. Clicking on it will pick it.

When the user picks an item off the menu, the item's callback is done with the menubar as the `Fl_Widget*` argument. If the item does not have a callback the menubar's callback is done instead.

Submenus will also pop up in response to shortcuts indicated by putting a '&' character in the name field of the menu item. If you put a '&' character in a top-level "button" then the shortcut picks it. The '&' character in submenus is ignored until the menu is popped up.

Typing the `shortcut()` of any of the menu items will cause callbacks exactly the same as when you pick the item with the mouse.

### Methods

- Fl_Menu_Bar
- ~Fl_Menu_Bar

#### Fl_Menu_Bar::Fl_Menu_Bar(int x, int y, int w, int h, const char *label = 0)

Creates a new `Fl_Menu_Bar` widget using the given position, size, and label string. The default boxtype is `FL_UP_BOX`.

The constructor sets `menu()` to `NULL`. See `Fl_Menu_` for the methods to set or change the menu.

`labelsize()`, `labelfont()`, and `labelcolor()` are used to control how the menubar items are drawn. They are initialized from the `Fl_Menu` static variables, but you can change them if desired.

`label()` is ignored unless you change `align()` to put it outside the menubar.

#### virtual Fl_Menu_Bar::~Fl_Menu_Bar()

The destructor removes the `Fl_Menu_Bar` widget and all of its menu items.