ncurses 6.0 - patch 20170318

[ncurses.git] / man / curs_pad.3x

diff --git a/man/curs_pad.3x b/man/curs_pad.3x
index 0813a0a48f64120e2dc8129680756e2183e63823..1b427e1002b5ca00b71e64db6f489521e8511924 100644 (file)
--- a/man/curs_pad.3x
+++ b/man/curs_pad.3x
@@ -1,5 +1,5 @@
 .\"***************************************************************************
 .\"***************************************************************************

-.\" Copyright (c) 1998,2000 Free Software Foundation, Inc.                   *
+.\" Copyright (c) 1998-2015,2017 Free Software Foundation, Inc.              *

 .\"                                                                          *
 .\" Permission is hereby granted, free of charge, to any person obtaining a  *
 .\" copy of this software and associated documentation files (the            *
 .\"                                                                          *
 .\" Permission is hereby granted, free of charge, to any person obtaining a  *
 .\" copy of this software and associated documentation files (the            *


@@ -26,85 +26,137 @@
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"

-.\" $Id: curs_pad.3x,v 1.9 2000/07/04 22:38:13 tom Exp $
+.\" $Id: curs_pad.3x,v 1.19 2017/01/07 19:25:15 tom Exp $

 .TH curs_pad 3X ""
 .TH curs_pad 3X ""

+.na
+.hy 0

 .SH NAME
 .SH NAME

-\fBnewpad\fR, \fBsubpad\fR, \fBprefresh\fR,
-\fBpnoutrefresh\fR, \fBpechochar\fR - create and display \fBcurses\fR pads
+\fBnewpad\fR,
+\fBsubpad\fR,
+\fBprefresh\fR,
+\fBpnoutrefresh\fR,
+\fBpechochar\fR,
+\fBpecho_wchar\fR \- create and display \fBcurses\fR pads
+.ad
+.hy

 .SH SYNOPSIS
 \fB#include <curses.h>\fR
 .SH SYNOPSIS
 \fB#include <curses.h>\fR

-
-\fBWINDOW *newpad(int nlines, int ncols);\fR
+.sp
+\fBWINDOW *newpad(int \fP\fInlines\fP\fB, int \fP\fIncols\fP\fB);\fR

 .br
 .br

-\fBWINDOW *subpad(WINDOW *orig, int nlines, int ncols,\fR
-      \fBint begin_y, int begin_x);\fR
+\fBWINDOW *subpad(WINDOW *\fP\fIorig\fP\fB, int \fP\fInlines\fP\fB, int \fP\fIncols\fP\fB,\fR
+      \fBint \fP\fIbegin_y\fP\fB, int \fP\fIbegin_x\fP\fB);\fR

 .br
 .br

-\fBint prefresh(WINDOW *pad, int pminrow, int pmincol,\fR
-      \fBint sminrow, int smincol, int smaxrow, int smaxcol);\fR
+\fBint prefresh(WINDOW *\fP\fIpad\fP\fB, int \fP\fIpminrow\fP\fB, int \fP\fIpmincol\fP\fB,\fR
+      \fBint \fP\fIsminrow\fP\fB, int \fP\fIsmincol\fP\fB, int \fP\fIsmaxrow\fP\fB, int \fP\fIsmaxcol\fP\fB);\fR

 .br
 .br

-\fBint pnoutrefresh(WINDOW *pad, int pminrow, int pmincol,\fR
-      \fBint sminrow, int smincol, int smaxrow, int smaxcol);\fR
+\fBint pnoutrefresh(WINDOW *\fP\fIpad\fP\fB, int \fP\fIpminrow\fP\fB, int \fP\fIpmincol\fP\fB,\fR
+      \fBint \fP\fIsminrow\fP\fB, int \fP\fIsmincol\fP\fB, int \fP\fIsmaxrow\fP\fB, int \fP\fIsmaxcol\fP\fB);\fR

 .br
 .br

-\fBint pechochar(WINDOW *pad, chtype ch);\fR
+\fBint pechochar(WINDOW *\fP\fIpad\fP\fB, chtype \fP\fIch\fP\fB);\fR
+.br
+\fBint pecho_wchar(WINDOW *\fP\fIpad\fP\fB, const cchar_t *\fP\fIwch\fP\fB);\fR

 .SH DESCRIPTION
 .SH DESCRIPTION

+.SS newpad

 The \fBnewpad\fR routine creates and returns a pointer to a new pad data
 structure with the given number of lines, \fInlines\fR, and columns,
 The \fBnewpad\fR routine creates and returns a pointer to a new pad data
 structure with the given number of lines, \fInlines\fR, and columns,

-\fIncols\fR.  A pad is like a window, except that it is not restricted by the
+\fIncols\fR.
+A pad is like a window, except that it is not restricted by the

 screen size, and is not necessarily associated with a particular part of the
 screen size, and is not necessarily associated with a particular part of the

-screen.  Pads can be used when a large window is needed, and only a part of the
-window will be on the screen at one time.  Automatic refreshes of pads
-(\fIe\fR.\fIg\fR., from scrolling or echoing of input) do not occur.  It is not
+screen.
+Pads can be used when a large window is needed, and only a part of the
+window will be on the screen at one time.
+Automatic refreshes of pads
+(e.g., from scrolling or echoing of input) do not occur.
+It is not

 legal to call \fBwrefresh\fR with a \fIpad\fR as an argument; the routines
 legal to call \fBwrefresh\fR with a \fIpad\fR as an argument; the routines

-\fBprefresh\fR or \fBpnoutrefresh\fR should be called instead.  Note that these
+\fBprefresh\fR or \fBpnoutrefresh\fR should be called instead.
+Note that these

 routines require additional parameters to specify the part of the pad to be
 displayed and the location on the screen to be used for the display.
 routines require additional parameters to specify the part of the pad to be
 displayed and the location on the screen to be used for the display.

-
+.SS subpad
+.PP

 The \fBsubpad\fR routine creates and returns a pointer to a subwindow within a
 pad with the given number of lines, \fInlines\fR, and columns, \fIncols\fR.
 Unlike \fBsubwin\fR, which uses screen coordinates, the window is at position
 The \fBsubpad\fR routine creates and returns a pointer to a subwindow within a
 pad with the given number of lines, \fInlines\fR, and columns, \fIncols\fR.
 Unlike \fBsubwin\fR, which uses screen coordinates, the window is at position

-(\fIbegin\fR_\fIx\fR\fB,\fR \fIbegin\fR_\fIy\fR) on the pad.  The window is
+(\fIbegin\fR_\fIx\fR\fB,\fR \fIbegin\fR_\fIy\fR) on the pad.
+The window is

 made in the middle of the window \fIorig\fR, so that changes made to one window
 made in the middle of the window \fIorig\fR, so that changes made to one window

-affect both windows.  During the use of this routine, it will often be
+affect both windows.
+During the use of this routine, it will often be

 necessary to call \fBtouchwin\fR or \fBtouchline\fR on \fIorig\fR before
 calling \fBprefresh\fR.
 necessary to call \fBtouchwin\fR or \fBtouchline\fR on \fIorig\fR before
 calling \fBprefresh\fR.

-
+.SS prefresh, pnoutrefresh
+.PP

 The \fBprefresh\fR and \fBpnoutrefresh\fR routines are analogous to
 \fBwrefresh\fR and \fBwnoutrefresh\fR except that they relate to pads instead
 The \fBprefresh\fR and \fBpnoutrefresh\fR routines are analogous to
 \fBwrefresh\fR and \fBwnoutrefresh\fR except that they relate to pads instead

-of windows.  The additional parameters are needed to indicate what part of the
-pad and screen are involved.  \fIpminrow\fR and \fIpmincol\fR specify the upper
-left-hand corner of the rectangle to be displayed in the pad.  \fIsminrow\fR,
-\fIsmincol\fR, \fIsmaxrow\fR, and \fIsmaxcol\fR specify the edges of the
-rectangle to be displayed on the screen.  The lower right-hand corner of the
+of windows.
+The additional parameters are needed to indicate what part of the
+pad and screen are involved.
+The \fIpminrow\fR and \fIpmincol\fR parameters specify the upper
+left-hand corner of the rectangle to be displayed in the pad.
+The \fIsminrow\fR,
+\fIsmincol\fR, \fIsmaxrow\fR, and \fIsmaxcol\fR
+parameters specify the edges of the
+rectangle to be displayed on the screen.
+The lower right-hand corner of the

 rectangle to be displayed in the pad is calculated from the screen coordinates,
 rectangle to be displayed in the pad is calculated from the screen coordinates,

-since the rectangles must be the same size.  Both rectangles must be entirely
-contained within their respective structures.  Negative values of
+since the rectangles must be the same size.
+Both rectangles must be entirely
+contained within their respective structures.
+Negative values of

 \fIpminrow\fR, \fIpmincol\fR, \fIsminrow\fR, or \fIsmincol\fR are treated as if
 they were zero.
 \fIpminrow\fR, \fIpmincol\fR, \fIsminrow\fR, or \fIsmincol\fR are treated as if
 they were zero.

-
+.SS pechochar
+.PP

 The \fBpechochar\fR routine is functionally equivalent to a call to \fBaddch\fR
 The \fBpechochar\fR routine is functionally equivalent to a call to \fBaddch\fR

-followed by a call to \fBrefresh\fR, a call to \fBwaddch\fR followed by a call
+followed by a call to \fBrefresh\fR(3X), a call to \fBwaddch\fR followed by a call

 to \fBwrefresh\fR, or a call to \fBwaddch\fR followed by a call to
 to \fBwrefresh\fR, or a call to \fBwaddch\fR followed by a call to

-\fBprefresh.\fR The knowledge that only a single character is being output is
+\fBprefresh\fR.
+The knowledge that only a single character is being output is

 taken into consideration and, for non-control characters, a considerable
 performance gain might be seen by using these routines instead of their
 taken into consideration and, for non-control characters, a considerable
 performance gain might be seen by using these routines instead of their

-equivalents.  In the case of \fBpechochar\fR, the last location of the pad on
+equivalents.
+In the case of \fBpechochar\fR, the last location of the pad on

 the screen is reused for the arguments to \fBprefresh\fR.
 the screen is reused for the arguments to \fBprefresh\fR.

+.SS pecho_wchar
+.PP
+The \fBpecho_wchar\fR function is the analogous wide-character
+form of \fBpechochar\fR.
+It outputs one character to a pad and immediately refreshes the pad.
+It does this by a call to \fBwadd_wch\fR followed by a call to \fBprefresh\fR.

 .SH RETURN VALUE
 Routines that return an integer return \fBERR\fR upon failure and \fBOK\fR
 (SVr4 only specifies "an integer value other than \fBERR\fR") upon successful
 completion.
 .SH RETURN VALUE
 Routines that return an integer return \fBERR\fR upon failure and \fBOK\fR
 (SVr4 only specifies "an integer value other than \fBERR\fR") upon successful
 completion.

-
+.PP

 Routines that return pointers return \fBNULL\fR on error, and set \fBerrno\fR
 Routines that return pointers return \fBNULL\fR on error, and set \fBerrno\fR

-to \fBENOMEM\fR.  
+to \fBENOMEM\fR.
+.PP
+X/Open does not define any error conditions.
+In this implementation
+.RS 3
+.TP 5
+\fBprefresh\fP and \fBpnoutrefresh\fP
+return an error
+if the window pointer is null, or
+if the window is not really a pad or
+if the area to refresh extends off-screen or
+if the minimum coordinates are greater than the maximum.
+.TP 5
+\fBpechochar\fP
+returns an error
+if the window is not really a pad, and the associated call
+to \fBwechochar\fP returns an error.
+.TP 5
+\fBpecho_wchar\fP
+returns an error
+if the window is not really a pad, and the associated call
+to \fBwecho_wchar\fP returns an error.
+.RE

 .SH NOTES
 Note that \fBpechochar\fR may be a macro.
 .SH PORTABILITY
 The XSI Curses standard, Issue 4 describes these functions.
 .SH SEE ALSO
 \fBcurses\fR(3X), \fBcurs_refresh\fR(3X), \fBcurs_touch\fR(3X), \fBcurs_addch\fR(3X).
 .SH NOTES
 Note that \fBpechochar\fR may be a macro.
 .SH PORTABILITY
 The XSI Curses standard, Issue 4 describes these functions.
 .SH SEE ALSO
 \fBcurses\fR(3X), \fBcurs_refresh\fR(3X), \fBcurs_touch\fR(3X), \fBcurs_addch\fR(3X).

-.\"#
-.\"# The following sets edit modes for GNU EMACS
-.\"# Local Variables:
-.\"# mode:nroff
-.\"# fill-column:79
-.\"# End: