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$Id: menu.3x,v 1.19 2006/11/04 18:38:29 tom Exp $
menu - curses extension for programming menus #include <menu.h>

The menu library provides terminal-independent facilities for composing menu systems on character-cell terminals. The library includes: item routines, which create and modify menu items; and menu routines, which group items into menus, display menus on the screen, and handle interaction with the user.

The menu library uses the curses libraries, and a curses initialization routine such as initscr must be called before using any of these functions. To use the menu library, link with the options -lmenu -lcurses. .

. The menu library maintains a default value for item attributes. You can get or set this default by calling the appropriate get_ or set_ routine with a NULL item pointer. Changing this default with a set_ function affects future item creations, but does not change the rendering of items already created. . . The following table lists each menu routine and the name of the manual page on which it is described. .

curses Routine Name Manual Page Name

current_item mitem_current(3X)

free_item mitem_new(3X)

free_menu menu_new(3X)

item_count menu_items(3X)

item_description mitem_name(3X)

item_index mitem_current(3X)

item_init menu_hook(3X)

item_name mitem_name(3X)

item_opts mitem_opts(3X)

item_opts_off mitem_opts(3X)

item_opts_on mitem_opts(3X)

item_term menu_hook(3X)

item_userptr mitem_userptr(3X)

item_value mitem_value(3X)

item_visible mitem_visible(3X)

menu_back menu_attributes(3X)

menu_driver menu_driver(3X)

menu_fore menu_attributes(3X)

menu_format menu_format(3X)

menu_grey menu_attributes(3X)

menu_init menu_hook(3X)

menu_items menu_items(3X)

menu_mark menu_mark(3X)

menu_opts menu_opts(3X)

menu_opts_off menu_opts(3X)

menu_opts_on menu_opts(3X)

menu_pad menu_attributes(3X)

menu_pattern menu_pattern(3X)

menu_request_by_name menu_requestname(3X)

menu_request_name menu_requestname(3X)

menu_spacing menu_spacing(3X)

menu_sub menu_win(3X)

menu_term menu_hook(3X)

menu_userptr menu_userptr(3X)

menu_win menu_win(3X)

new_item mitem_new(3X)

new_menu menu_new(3X)

pos_menu_cursor menu_cursor(3X)

post_menu menu_post(3X)

scale_menu menu_win(3X)

set_current_item mitem_current(3X)

set_item_init menu_hook(3X)

set_item_opts mitem_opts(3X)

set_item_term menu_hook(3X)

set_item_userptr mitem_userptr(3X)

set_item_value mitem_value(3X)

set_menu_back menu_attributes(3X)

set_menu_fore menu_attributes(3X)

set_menu_format menu_format(3X)

set_menu_grey menu_attributes(3X)

set_menu_init menu_hook(3X)

set_menu_items menu_items(3X)

set_menu_mark menu_mark(3X)

set_menu_opts mitem_opts(3X)

set_menu_pad menu_attributes(3X)

set_menu_pattern menu_pattern(3X)

set_menu_spacing menu_spacing(3X)

set_menu_sub menu_win(3X)

set_menu_term menu_hook(3X)

set_menu_userptr menu_userptr(3X)

set_menu_win menu_win(3X)

set_top_row mitem_current(3X)

top_row mitem_current(3X)

unpost_menu menu_post(3X)

Routines that return pointers return NULL on error. Routines that return an integer return one of the following error codes:

5 E_OK The routine succeeded.

5 E_BAD_ARGUMENT Routine detected an incorrect or out-of-range argument.

5 E_BAD_STATE Routine was called from an initialization or termination function.

5 E_NO_MATCH Character failed to match.

5 E_NO_ROOM Menu is too large for its window.

5 E_NOT_CONNECTED No items are connected to the menu.

5 E_NOT_POSTED The menu has not been posted.

5 E_NOT_SELECTABLE The designated item cannot be selected.

5 E_POSTED The menu is already posted.

5 E_REQUEST_DENIED The menu driver could not process the request.

5 E_SYSTEM_ERROR System error occurred (see errno).

5 E_UNKNOWN_COMMAND The menu driver code saw an unknown request code.

curses(3X) and related pages whose names begin "menu_" for detailed descriptions of the entry points. The header file <menu.h> automatically includes the header files <curses.h> and <eti.h>.

In your library list, libmenu.a should be before libncurses.a; that is, you want to say `-lmenu -lncurses', not the other way around (which would usually give a link-error).

These routines emulate the System V menu library. They were not supported on Version 7 or BSD versions. Juergen Pfeifer. Manual pages and adaptation for ncurses by Eric S. Raymond. This describes ncurses version @NCURSES_MAJOR@.@NCURSES_MINOR@ (patch @NCURSES_PATCH@). #
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