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format(3menu)


NAME

   set_menu_format, menu_format - set and get menu sizes

SYNOPSIS

   #include <menu.h>
   int set_menu_format(MENU *menu, int rows, int cols);
   void menu_format(const MENU *menu, int *rows, int *cols);

DESCRIPTION

   The function set_menu_format sets the maximum display size of the given
   menu.  If this size is too small to display all menu  items,  the  menu
   will  be  made  scrollable.  If  this  size  is  larger  than the menus
   subwindow and the subwindow is too small to  display  all  menu  items,
   post_menu() will fail.

   The  default format is 16 rows, 1 column.  Calling set_menu_format with
   a null menu pointer will change this default.  A  zero  row  or  column
   argument  to  set_menu_format is interpreted as a request not to change
   the current value.

   The function menu_format returns the maximum-size constraints  for  the
   given menu into the storage addressed by rows and cols.

RETURN VALUE

   These routines returns 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 argument.

   E_POSTED
        The menu is already posted.

   E_NOT_CONNECTED
        No items are connected to the menu.

SEE ALSO

   ncurses(3NCURSES), menu(3MENU).

NOTES

   The  header  file  <menu.h>  automatically  includes  the  header  file
   <curses.h>.

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.

                                                             format(3MENU)



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