post_menu() writes menu to the subwindow. The application programmer must use curses library routines to display the menu on the physical screen or call update_panels() if the panels library is being used.

unpost_menu() erases menu from its associated subwindow.

These routines return one of the following:

E_OK

The routine returned successfully.

E_SYSTEM_ERROR

System error.

E_BAD_ARGUMENT

An incorrect argument was passed to the routine.

E_POSTED

The menu is already posted.

E_BAD_STATE

The routine was called from an initialization or termination function.

E_NO_ROOM

The menu does not fit within its subwindow.

E_NOT_POSTED

The menu has not been posted.

E_NOT_CONNECTED

No items are connected to the menu.

See attributes(5) for descriptions of the following attributes:

curses(3CURSES), menus(3CURSES), panels(3CURSES), attributes(5)

The header <menu.h> automatically includes the headers <eti.h> and <curses.h>.