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e5d1530ca2
+ improve manpage typography. + improve discussion in curs_addch.3x of the use of unctrl to display nonprintable characters. + add a note in terminfo.5 explaining that no-parameter strings such as sgr0 or cnorm should not be used with tparm.
92 lines
4.0 KiB
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92 lines
4.0 KiB
Plaintext
'\" t
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.\"***************************************************************************
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.\" Copyright 2018-2019,2020 Thomas E. Dickey *
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.\" Copyright 1998-2010,2015 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: mitem_new.3x,v 1.19 2020/10/18 00:37:03 tom Exp $
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.TH mitem_new 3X ""
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.SH NAME
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\fBnew_item\fP,
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\fBfree_item\fR \- create and destroy menu items
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.SH SYNOPSIS
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\fB#include <menu.h>\fR
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.sp
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\fBITEM *new_item(const char *\fP\fIname\fP\fB, const char *\fP\fIdescription\fP\fB);\fP
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.br
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\fBint free_item(ITEM *\fP\fIitem\fP\fB);\fP
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.br
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.SH DESCRIPTION
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The function \fBnew_item\fR allocates a new item and initializes it from the
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\fBname\fR and \fBdescription\fR pointers.
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Please notice that the item stores
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only the pointers to the name and description.
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Those pointers must be valid
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during the lifetime of the item.
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So you should be very careful with names
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or descriptions allocated on the stack of some routines.
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.br
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The function \fBfree_item\fR de-allocates an item.
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Please notice that it
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is the responsibility of the application to release the memory for the
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name or the description of the item.
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.SH RETURN VALUE
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The function \fBnew_item\fR returns \fBNULL\fR on error.
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It sets \fBerrno\fP according to the function's failure:
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.TP 5
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.B E_BAD_ARGUMENT
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Routine detected an incorrect or out-of-range argument.
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.TP 5
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.B E_SYSTEM_ERROR
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System error occurred, e.g., malloc failure.
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.PP
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The function \fBfree_item\fR returns one of the following:
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.TP 5
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.B E_OK
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The routine succeeded.
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.TP 5
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.B E_BAD_ARGUMENT
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Routine detected an incorrect or out-of-range argument.
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.TP 5
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.B E_CONNECTED
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Item is connected to a menu.
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.TP 5
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.B E_SYSTEM_ERROR
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System error occurred (see \fBerrno\fR(3)).
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.SH SEE ALSO
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\fBcurses\fR(3X), \fBmenu\fR(3X).
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.SH NOTES
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The header file \fB<menu.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 menu library.
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They were not supported on
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Version 7 or BSD versions.
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.SH AUTHORS
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Juergen Pfeifer.
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Manual pages and adaptation for new curses by Eric S. Raymond.
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