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31 .\" $Id: form_field_userptr.3x,v 1.14 2020/03/28 19:06:28 tom Exp $
32 .TH form_field_userptr 3X ""
34 \fBset_field_userptr\fR,
35 \fBfield_userptr\fR \- associate application data with a form field
37 \fB#include <form.h>\fR
39 int set_field_userptr(FIELD *field, void*userptr);
41 void *field_userptr(const FIELD *field);
44 Every form field has a field that can be used to hold application-specific data
45 (that is, the form-driver code leaves it alone).
46 These functions get and set
49 The function \fBfield_userptr\fR returns a pointer (which may be \fBNULL\fR).
50 It does not set \fBerrno\fP.
52 The function \fBset_field_userptr\fR returns \fBE_OK\fP (success).
54 \fBcurses\fR(3X), \fBform\fR(3X).
56 The header file \fB<form.h>\fR automatically includes the header file
59 These routines emulate the System V forms library.
60 They were not supported on
61 Version 7 or BSD versions.
63 The user pointer is a void pointer.
64 We chose not to leave it as a char pointer for SVr4 compatibility.
67 Manual pages and adaptation for new curses by Eric S. Raymond.