01cf73a5d3
While I didn't plan another upgrade, This version incorporate fixes from kevans@ so let's upgrade to it
119 lines
5.0 KiB
Plaintext
119 lines
5.0 KiB
Plaintext
.\"***************************************************************************
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.\" Copyright 2018-2019,2020 Thomas E. Dickey *
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.\" Copyright 1998-2010,2017 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: curs_printw.3x,v 1.25 2020/02/02 23:34:34 tom Exp $
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.TH curs_printw 3X ""
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.ie \n(.g .ds `` \(lq
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.el .ds `` ``
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.ie \n(.g .ds '' \(rq
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.el .ds '' ''
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.de bP
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.ie n .IP \(bu 4
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.el .IP \(bu 2
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..
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.na
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.hy 0
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.SH NAME
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\fBprintw\fR,
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\fBwprintw\fR,
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\fBmvprintw\fR,
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\fBmvwprintw\fR,
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\fBvwprintw\fR, \fBvw_printw\fR \- print formatted output in \fBcurses\fR windows
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.ad
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.hy
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.SH SYNOPSIS
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\fB#include <curses.h>\fR
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.sp
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\fBint printw(const char *fmt, ...);\fR
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.br
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\fBint wprintw(WINDOW *win, const char *fmt, ...);\fR
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.br
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\fBint mvprintw(int y, int x, const char *fmt, ...);\fR
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.br
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\fBint mvwprintw(WINDOW *win, int y, int x, const char *fmt, ...);\fR
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.br
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\fBint vw_printw(WINDOW *win, const char *fmt, va_list varglist);\fR
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.sp
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/* obsolete */
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.br
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\fBint vwprintw(WINDOW *win, const char *fmt, va_list varglist);\fR
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.SH DESCRIPTION
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The \fBprintw\fR, \fBwprintw\fR, \fBmvprintw\fR and \fBmvwprintw\fR
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routines are analogous to \fBprintf\fR [see \fBprintf\fR(3)].
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In
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effect, the string that would be output by \fBprintf\fR is output
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instead as though \fBwaddstr\fR were used on the given window.
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.PP
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The \fBvwprintw\fR and \fBwv_printw\fR routines are analogous
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to \fBvprintf\fR [see \fBprintf\fR(3)]
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and perform a \fBwprintw\fR using a variable argument list.
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The third argument is a \fBva_list\fR, a pointer to a
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list of arguments, as defined in \fB<stdarg.h>\fR.
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.SH RETURN VALUE
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Routines that return an integer return \fBERR\fR upon failure and \fBOK\fR
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(SVr4 only specifies "an integer value other than \fBERR\fR") upon successful
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completion.
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.PP
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X/Open defines no error conditions.
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In this implementation,
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an error may be returned if it cannot allocate enough memory for the
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buffer used to format the results.
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It will return an error if the window pointer is null.
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.PP
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Functions with a \*(``mv\*('' prefix first perform a cursor movement using
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\fBwmove\fP, and return an error if the position is outside the window,
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or if the window pointer is null.
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.SH PORTABILITY
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In this implementation, \fBvw_printw\fP and \fBvwprintw\fP are equivalent,
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to support legacy applications.
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However, the latter (\fBvwprintw\fP) is obsolete:
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.bP
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The XSI Curses standard, Issue 4 described these functions.
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The function
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\fBvwprintw\fR is marked TO BE WITHDRAWN, and is to be replaced by a function
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\fBvw_printw\fR using the \fB<stdarg.h>\fR interface.
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.bP
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The Single Unix Specification, Version 2 states that
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\fBvw_printw\fR is preferred to \fBvwprintw\fR since the latter requires
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including \fB<varargs.h>\fR, which
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cannot be used in the same file as \fB<stdarg.h>\fR.
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This implementation uses \fB<stdarg.h>\fR for both,
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because that header is included in \fB<curses.h\fR>.
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.bP
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X/Open Curses, Issue 5 (December 2007) marked \fBvwprintw\fP (along with
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\fBvwscanw\fP and the termcap interface) as withdrawn.
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.SH SEE ALSO
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.na
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\fBcurses\fR(3X),
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\fBcurs_addstr\fR(3X),
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\fBcurs_scanw\fR(3X),
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\fBcurs_termcap\fP(3X),
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\fBprintf\fR(3),
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\fBvprintf\fR(3).
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