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superclass: object% | ||||
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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) &ersand. 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.