NAME¶
form_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).
SEE ALSO¶
ncurses(3NCURSES),
form(3FORM).
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.