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'\" t
.TH form_userptr 3X ""
.SH NAME
\fBform_userptr\fR - associate application data with a form item
.SH SYNOPSIS
\fB#include <form.h>\fR
.br
int set_form_userptr(FORM *form, char *userptr);
.br
char form_userptr(FORM *form);
.br
.SH 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.
.SH RETURN VALUE
The function \fBform_userptr\fR returns \fBNULL\fR on error. The function each
function \fB\set_form_userptrfR returns one of the following:
.TP 5
\fBE_OK\fR
The routine succeeded.
.TP 5
\fBE_SYSTEM_ERROR\fR
System error occurred (see \fBerrno\fR).
.SH SEE ALSO
\fBcurses\fR(3X), \fBform\fR(3X).
.SH NOTES
The header file \fB<form.h>\fR automatically includes the header file
\fB<curses.h>\fR.
.SH 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.
.SH AUTHORS
Juergen Pfeifer. Manual pages and adaptation for new curses by Eric
S. Raymond.
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