https://invisible-island.net/ncurses/man/

form_field_userptr 3x 2024-03-16 ncurses 6.5 Library calls

form_field_userptr(3x)           Library calls          form_field_userptr(3x)

NAME

       set_field_userptr,  field_userptr  -  associate application data with a
       form field

SYNOPSIS

       #include <form.h>

       int set_field_userptr(FIELD *field, void *userptr);
       void *field_userptr(const FIELD *field);

DESCRIPTION

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

RETURN VALUE

       The function field_userptr returns a pointer (which may be  NULL).   It
       does not set errno.

       The function set_field_userptr returns E_OK (success).

PORTABILITY

       These  routines  emulate  the  System  V  forms 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), form(3x)



ncurses 6.5                       2024-03-16            form_field_userptr(3x)