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NAME
     menu - curses extension for programming menus

SYNOPSIS
     #include <menu.h>

DESCRIPTION
     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.


  Current Default Values for Item Attributes
     The menu library maintains a default value for  item  attri-
     butes.   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.


  Routine Name Index
     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_attribs(3X)
     menu_driver            menu_driver(3X)
     menu_fore              menu_attribs(3X)
     menu_format            menu_format(3X)
     menu_grey              menu_attribs(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_attribs(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_attribs(3X)
     set_menu_fore          menu_attribs(3X)
     set_menu_format        menu_format(3X)
     set_menu_grey          menu_attribs(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_attribs(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)

RETURN VALUE
     Routines that return pointers return NULL  on  error.   Rou-
     tines  that  return  an  integer return one of the following
     error codes:
     E_OK The routine succeeded.

     E_SYSTEM_ERROR
          System error occurred (see errno).

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

     E_POSTED
          The menu is already posted.

     E_BAD_STATE
          Routine was called from an initialization  or  termina-
          tion function.

     E_NO_ROOM
          Menu is too large for its window.

     E_NOT_POSTED
          The menu has not been posted.

     E_UNKNOWN_COMMAND
          The menu driver code saw an unknown request code.

     E_NO_MATCH
          Character failed to match.

     E_NOT_SELECTABLE
          The designated item cannot be selected.

     E_NOT_CONNECTED
          No items are connected to the menu.

     E_REQUEST_DENIED
          The menu driver could not process the request.

SEE ALSO
     curses(3X) and  3X  pages  whose  names  begin  "menu_"  for
     detailed descriptions of the entry points.

NOTES
     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 give you a link  error
     using GNU ld(1) and many other linkers).

PORTABILITY
     These routines emulate the System V menu library.  They were
     not supported on Version 7 or BSD versions.

AUTHORS
     Juergen Pfeifer.  Manual pages and adaptation for ncurses by
     Eric S. Raymond.

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