64 lines
3.2 KiB
Plaintext
64 lines
3.2 KiB
Plaintext
'\" t
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.\"***************************************************************************
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.\" Copyright (c) 1998-2006,2010 Free Software Foundation, Inc. *
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.\" *
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.\" Permission is hereby granted, free of charge, to any person obtaining a *
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.\" copy of this software and associated documentation files (the *
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.\" "Software"), to deal in the Software without restriction, including *
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.\" without limitation the rights to use, copy, modify, merge, publish, *
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.\" distribute, distribute with modifications, sublicense, and/or sell *
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.\" copies of the Software, and to permit persons to whom the Software is *
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.\" furnished to do so, subject to the following conditions: *
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.\" *
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.\" The above copyright notice and this permission notice shall be included *
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.\" in all copies or substantial portions of the Software. *
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.\" *
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.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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.\" IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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.\" DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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.\" OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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.\" THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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.\" *
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.\" Except as contained in this notice, the name(s) of the above copyright *
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.\" holders shall not be used in advertising or otherwise to promote the *
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.\" sale, use or other dealings in this Software without prior written *
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.\" authorization. *
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.\"***************************************************************************
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.\"
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.\" $Id: form_field_userptr.3x,v 1.10 2010/12/04 18:40:45 tom Exp $
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.TH form_field_userptr 3X ""
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.SH NAME
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\fBform_field_userptr\fR \- associate application data with a form field
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.SH SYNOPSIS
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\fB#include <form.h>\fR
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.br
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int set_field_userptr(FIELD *field, void*userptr);
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.br
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void *field_userptr(const FIELD *field);
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.br
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.SH DESCRIPTION
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Every form field has a field that can be used to hold application-specific data
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(that is, the form-driver code leaves it alone). These functions get and set
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that field.
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.SH RETURN VALUE
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The function \fBfield_userptr\fR returns a pointer (which may be \fBNULL\fR).
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It does not set errno.
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.PP
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The function \fBset_field_userptr\fR returns \fBE_OK\fP (success).
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.SH SEE ALSO
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\fBcurses\fR(3X), \fBform\fR(3X).
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.SH NOTES
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The header file \fB<form.h>\fR automatically includes the header file
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\fB<curses.h>\fR.
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.SH PORTABILITY
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These routines emulate the System V forms library. They were not supported on
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Version 7 or BSD versions.
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.PP
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The user pointer is a void pointer.
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We chose not to leave it as a char pointer for SVr4 compatibility.
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.SH AUTHORS
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Juergen Pfeifer. Manual pages and adaptation for new curses by Eric
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S. Raymond.
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