form_userptr

Section: Miscellaneous Library Functions (3X)
Updated:
Index Return to Main Contents
 

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 NULL on error. The function set_form_userptr returns one of the following:
E_OK
The routine succeeded.
E_SYSTEM_ERROR
System error occurred (see errno).
 

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 should be a void pointer. We leave it as a char pointer for SVr4 compatibility.  

AUTHORS

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


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
SEE ALSO
NOTES
PORTABILITY
AUTHORS

linux.jgfs.net manual pages