01-05-2013
Select Command - return
Hello everyone,
A simple question which may have a suggested solution:
I am using, and loving, the select command in a ksh93 script on AIX 6.1 to present users with menus.
I have been successful in controlling all of key input by the users, I still have an issue with the RETURN key. When the menu is presented if the user presses the return key by itself the menu gets redrawn. If the user keeps pressing return the screen keeps getting full of the same menu over and over and it scrolls.
Is there a way to capture the fact that return was pressed by itself and take care of action needed in the do....done attached to the select?
Or alternatively allow the return to redraw the menu but on top the original one, and not append it to the screen after the PS3 prompt?
Hope you all have some suggestions.
Thanks, and a Happy New Year everyone !
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LEARN ABOUT NETBSD
menu_post
MENU_POST(3) BSD Library Functions Manual MENU_POST(3)
NAME
post_menu, unpost_menu -- post (draw) or unpost a menu
LIBRARY
Curses Menu Library (libmenu, -lmenu)
SYNOPSIS
#include <menu.h>
int
post_menu(MENU *menu);
int
unpost_menu(MENU *menu);
DESCRIPTION
The post_menu() function causes the menu to be drawn on the screen. Any functions defined by either set_menu_init() or set_item_init() (see
menu_hook(3)) are called before the menu is placed on the screen. The unpost_menu() does the opposite, it removes a menu from the screen.
Any functions defined by both set_menu_term() and set_item_term() (see menu_hook(3)) are called prior to the menu's removal.
RETURN VALUES
The functions return one of the following error values:
E_OK The function was successful.
E_SYSTEM_ERROR There was a system error during the call.
E_BAD_ARGUMENT One or more of the arguments passed to the function was incorrect.
E_POSTED The menu is already posted.
E_BAD_STATE The function was called from within an initialization or termination routine.
E_NO_ROOM The menu does not fit within the subwindow.
E_NOT_CONNECTED The item is not connected to a menu.
SEE ALSO
curses(3), menu_hook(3), menus(3)
NOTES
The header <menu.h> automatically includes both <curses.h> and <eti.h>.
BSD
September 10, 1999 BSD