The MenuBar menu element encapsulates a window menu bar definition.

The MenuBar element features can be modified by using options. To simplify specifying options in the Maplets package, certain options and contents can be set without using an equation. The following table lists elements, symbols, and types (in the left column) and the corresponding option or content (in the right column) to which inputs of this type are, by default, assigned.

A MenuBar can contain any number of Menu elements.

A MenuBar element can be contained in a Maplet element, or in a Window element in an equation for the menubar option.

The following table describes the control and use of the MenuBar element options.

An x in the I column indicates that the option can be initialized, that is, specified in the calling sequence (element definition).

An x in the R column indicates that the option is required in the calling sequence.

An x in the G column indicates that the option can be read, that is, retrieved by using the Get tool.

An x in the S column indicates that the option can be written, that is, set by using the SetOption element or the Set tool.

The opts argument can contain one or more of the following equations that set Maplet application options.

reference = name or string

A reference for the MenuBar element.

If the reference is specified by both an index, for example, MenuBar[refID], and a reference in the calling sequence, the index reference takes precedence.

visible = true or false

Whether the menu bar is visible to the user.  By default, the value is true.

$\mathrm{with}\left(\mathrm{Maplets}\left[\mathrm{Elements}\right]\right)\:$

$\mathrm{maplet}≔\mathrm{Maplet}\left(\mathrm{Window}\left('\mathrm{menubar}'='\mathrm{MB1}'\,\left[\left[\mathrm{Button}\left(''OK''\,\mathrm{Shutdown}\left(''Closed\; from\; button''\right)\right)\right]\right]\right)\,\mathrm{MenuBar}\left['\mathrm{MB1}'\right]\left(\mathrm{Menu}\left(''File''\,\mathrm{MenuItem}\left(''Close''\,\mathrm{Shutdown}\left(''Closed\; from\; menu''\right)\right)\right)\right)\right)\:$

$\mathrm{Maplets}\left[\mathrm{Display}\right]\left(\mathrm{maplet}\right)$