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30 .\" $Id: form_userptr.3x,v 1.14 2015/12/05 23:42:45 tom Exp $
31 .TH form_userptr 3X ""
33 \fBset_form_userptr\fP,
34 \fBform_userptr\fR \- associate application data with a form item
36 \fB#include <form.h>\fR
38 int set_form_userptr(FORM *form, void *userptr);
40 void* form_userptr(const FORM *form);
43 Every form and every form item has a field that can be used to hold
44 application-specific data (that is, the form-driver code leaves it alone).
45 These functions get and set the form user pointer field.
47 The function \fBform_userptr\fR returns a pointer (which may be \fBNULL\fR).
48 It does not set errno.
50 The function \fBset_form_userptr\fR returns \fBE_OK\fP (success).
52 \fBcurses\fR(3X), \fBform\fR(3X).
54 The header file \fB<form.h>\fR automatically includes the header file
57 These routines emulate the System V forms library. They were not supported on
58 Version 7 or BSD versions.
60 The user pointer is a void pointer.
61 We chose not to leave it as a char pointer for SVr4 compatibility.
63 Juergen Pfeifer. Manual pages and adaptation for new curses by Eric