+ The menu library provides terminal-independent facilities
for composing menu systems on character-cell terminals.
The library includes: item routines, which create and mod-
ify 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 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.
- CurrentDefaultValuesforItemAttributes
- The menu library maintains a default value for item
+
+ 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
+ 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.
- RoutineNameIndex
- The following table lists each menu routine and the name
+
+ 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_OK The routine succeeded.
- E_BAD_ARGUMENT
+ E_BAD_ARGUMENT
Routine detected an incorrect or out-of-range argu-
ment.
- E_POSTED
- The menu is already posted.
-
- E_BAD_STATE
+ E_BAD_STATE
Routine was called from an initialization or termina-
tion function.
- E_NO_ROOM
- Menu is too large for its window.
+ E_NO_MATCH
+ Character failed to match.
- E_NOT_POSTED
- The menu has not been posted.
+ E_NO_ROOM
+ Menu is too large for its window.
- E_UNKNOWN_COMMAND
- The menu driver code saw an unknown request code.
+ E_NOT_CONNECTED
+ No items are connected to the menu.
- E_NO_MATCH
- Character failed to match.
+ E_NOT_POSTED
+ The menu has not been posted.
- E_NOT_SELECTABLE
+ E_NOT_SELECTABLE
The designated item cannot be selected.
- E_NOT_CONNECTED
- No items are connected to the menu.
+ E_POSTED
+ The menu is already posted.
- E_REQUEST_DENIED
+ E_REQUEST_DENIED
The menu driver could not process the request.
+ E_SYSTEM_ERROR
+ System error occurred (see errno).
-
-
SEE ALSO
- curses(3x) and 3x pages whose names begin "menu_" for
- detailed descriptions of the entry points.
+ E_UNKNOWN_COMMAND
+ The menu driver code saw an unknown request code.
-
-
NOTES
- The header file <menu.h> automatically includes the header
- files <curses.h> and <eti.h>.
+
+ The header file <menu.h> automatically includes the header
+ files <curses.h> and <eti.h>.
- In your library list, libmenu.a should be before libn-
+ In your library list, libmenu.a should be before libn-
curses.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).
+ the other way around (which would usually give a link-
+ error).
-
-
PORTABILITY
- These routines emulate the System V menu library. They
+