menu_post - write or erase menus from associated subwindows
int post_menu(MENU *menu);
int unpost_menu(MENU *menu);
The function post_menu displays a menu to its associated subwindow. To
trigger physical display of the subwindow, use refresh or some equiva-
lent 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.
These routines return one of the following:
E_OK The routine succeeded.
System error occurred (see errno).
Routine detected an incorrect or out-of-range argument.
The menu has already been posted.
Routine was called from an initialization or termination function.
Menu is too large for its window. You should consider to use
set_menu_format() to solve the problem.
The menu has not been posted.
No items are connected to the menu.
The header file <menu.h> automatically includes the header file
These routines emulate the System V menu library. They were not sup-
ported on Version 7 or BSD versions.
Juergen Pfeifer. Manual pages and adaptation for new curses by Eric S.