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menu_userptr 3x 2023-11-25 ncurses 6.4 Library calls

menu_userptr(3x)                 Library calls                menu_userptr(3x)




NAME

       set_menu_userptr, menu_userptr - associate application data with a menu
       item


SYNOPSIS

       #include <menu.h>

       int set_menu_userptr(MENU *menu, void *userptr);
       void *menu_userptr(const MENU *menu);


DESCRIPTION

       Every menu and every menu item has a field that can  be  used  to  hold
       application-specific  data  (that  is,  the  menu-driver code leaves it
       alone).  These functions get and set the menu user pointer field.


RETURN VALUE

       menu_userptr returns a pointer (which may be NULL).  It  does  not  set
       errno.

       set_menu_userptr returns E_OK (success).


PORTABILITY

       These  routines  emulate  the  System  V  menu  library.  They were not
       supported on Version 7 or BSD versions.

       The user pointer is a void pointer.  We chose not to leave it as a char
       pointer for SVr4 compatibility.


AUTHORS

       Juergen Pfeifer.  Manual pages and adaptation for new curses by Eric S.
       Raymond.


SEE ALSO

       curses(3x), menu(3x)



ncurses 6.4                       2023-11-25                  menu_userptr(3x)