GUI: PLT Graphics Toolkit

1`` | Overview
- | Windowing
- | Drawing
- | Editor
2`` | Reference
- | Windowing Classes
- | Windowing Functions
- | Drawing Classes
- | Drawing Functions
- | Editor Classes
- | Editor Functions
- | WXME Decoding
3`` | Configuration
4`` | Dynamic Loading
| Index

On this page:

enable
get-frame
is-enabled?

Inherited methods:
from menu-item-container<%>
get-items
on-demand

Version: 4.0.2
contents index
← prev up next →

menu-bar% : class?
superclass: object%

extends: | menu-item-container<%>

A menu-bar% object is created for a particular frame% object. A frame can have at most one menu bar; an exn:fail:contract exception is raised when a new menu bar is created for a frame that already has a menu bar.

(new menu-bar% |  | [parent parent] |
| [ | [demand-callback demand-callback]]) |

→ (is-a?/c menu-bar%)
parent : (or/c (is-a?/c frame%) (one-of/c 'root))

| demand-callback |  | : |  | ((is-a?/c menu-bar%) . -> . any)
|  |  | = |  | (lambda (m) (void))

Creates a menu bar in the specified frame. The menu bar is initially empty. If 'root is supplied as parent, the menu bar becomes active only when no other frames are shown. A 'root parent is allowed only when current-eventspace-has-menu-root? returns #t, and only if no such menu bar has been created before, otherwise an exn:fail:contract exception is raised.

The demand-callback procedure is called by the default on-demand method with the object itself.

(send a-menu-bar enable enable?) → void?
enable? : any/c

Enables or disables the menu bar (i.e., all of its menus). Each menu’s is-enabled? method returns #f only if the menu is specifically disabled (in addition to the menu bar).

(send a-menu-bar get-frame) → (is-a?/c frame%)

Returns the menu bar’s frame.

(send a-menu-bar is-enabled?) → boolean?

Returns #t if the menu bar is enabled, #f otherwise.

contents index
← prev up next →