► |  | The Racket Graphical Interface Toolkit

1 | Windowing
2 | Windowing Classes
3 | Windowing Functions
4 | Editors
5 | Snip and Style Classes
6 | Editor Classes
7 | Editor Functions
8 | WXME Decoding
9 | Preferences
10 | Dynamic Loading
11 | Startup Actions
12 | Platform Dependencies
| Index

▼ | 2 | Windowing Classes

2.1 | area<%>
2.2 | area-container<%>
2.3 | area-container-window<%>
2.4 | button%
2.5 | canvas<%>
2.6 | canvas%
2.7 | check-box%
2.8 | checkable-menu-item%
2.9 | choice%
2.10 | clipboard-client%
2.11 | clipboard<%>
2.12 | combo-field%
2.13 | control<%>
2.14 | column-control-event%
2.15 | control-event%
2.16 | cursor%
2.17 | dialog%
2.18 | event%
2.19 | frame%
2.20 | gauge%
2.21 | group-box-panel%
2.22 | grow-box-spacer-pane%
2.23 | horizontal-pane%
2.24 | horizontal-panel%
2.25 | key-event%
2.26 | labelled-menu-item<%>
2.27 | list-box%
2.28 | list-control<%>
2.29 | menu%
2.30 | menu-bar%
2.31 | menu-item<%>
2.32 | menu-item%
2.33 | menu-item-container<%>
2.34 | message%
2.35 | mouse-event%
2.36 | pane%
2.37 | panel%
2.38 | popup-menu%
2.39 | printer-dc%
2.40 | radio-box%
2.41 | selectable-menu-item<%>
2.42 | separator-menu-item%
2.43 | scroll-event%
2.44 | slider%
2.45 | subarea<%>
2.46 | subwindow<%>
2.47 | tab-panel%
2.48 | text-field%
2.49 | timer%
2.50 | top-level-window<%>
2.51 | vertical-pane%
2.52 | vertical-panel%
2.53 | window<%>

Inherited methods:
from labelled-menu-item<%>
enable
get-help-string
get-label
get-plain-label
is-enabled?
on-demand
set-help-string
set-label
from menu-item<%>
delete
get-parent
is-deleted?
restore
from menu-item-container<%>
get-items

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> class

> menu% : class?

superclass: object%

extends: | menu-item-container<%>
| labelled-menu-item<%>

A menu% object is a submenu within a menu% or popup-menu%, or as a top-level menu in a menu-bar%.

> > constructor

> > (new menu% |
> > |  | [label label] |
> > |  | [parent parent] |
> > | [ | [help-string help-string] |
> > |  | [demand-callback demand-callback]]) |

> → (is-a?/c menu%)
> label : label-string?

> parent

> :

> (or/c (is-a?/c menu%) (is-a?/c popup-menu%)
> (is-a?/c menu-bar%))

> help-string : (or/c label-string? #f) = #f

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

Creates a new menu with the given label.

If label contains a &, it is handled specially; on Windows, the character following a & is underlined in the displayed menu title to indicate a keyboard mnemonic. Pressing and releasing the Alt key switches to menu-selection mode in the menu bar where mnemonic characters are used for navigation. An Alt combination might select a specific menu via on-menu-char. A && in label is replaced by a literal (non-navigation) &ampersand. On Unix and Mac OS X, &s in the label are parsed in the same way as for Windows, but no mnemonic underline is displayed.

If help-string is not #f, the menu has a help string. See get-help-string for more information.

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