           menu_post  -  write or erase menus from associated subwin-
           dows

## SYNOPSIS

           #include
           int post_menu(MENU *menu);
           int unpost_menu(MENU *menu);

## DESCRIPTION

           The function post_menu displays a menu to  its  associated
           subwindow.   To trigger physical display of the subwindow,
           use  refresh  or  some  equivalent  curses  routine   (the
           implicit  doupdate  triggered  by  an curses input request
           will do). post_menu resets the  selection  status  of  all
           items.

           The  function  unpost_menu erases menu from its associated
           subwindow.

## RETURN VALUE

           These routines return one of the following:

           E_OK The routine succeeded.

           E_SYSTEM_ERROR
                System error occurred (see errno).

           E_BAD_ARGUMENT
                Routine detected an incorrect or  out-of-range  argu-
                ment.

           E_POSTED
                The menu has already been posted.

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

           E_NO_ROOM
                Menu is too large for its window. You should consider
                to use set_menu_format() to solve the problem.

           E_NOT_POSTED
                The menu has not been posted.

           E_NOT_CONNECTED
                No items are connected to the menu.

## SEE ALSO

           curses(3X), menu(3X).

## NOTES

## 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 new
           curses by Eric S. Raymond.