form_userptr 3x

form_userptr(3x)                                       form_userptr(3x)

NAME

       form_userptr - associate application data with a form item

SYNOPSIS

       #include <form.h>
       int set_form_userptr(FORM *form, void *userptr);
       void* form_userptr(const FORM *form);

DESCRIPTION

       Every  form  and  every  form item 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
       the form user pointer field.

RETURN VALUE

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

       The function set_form_userptr returns E_OK (success).

SEE ALSO

       curses(3x), form(3x).

NOTES

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

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.



                                                       form_userptr(3x)