.\"***************************************************************************
-.\" Copyright (c) 1998-2003,2004 Free Software Foundation, Inc. *
+.\" Copyright (c) 1998-2010,2015 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 *
.\" authorization. *
.\"***************************************************************************
.\"
-.\" $Id: curs_pad.3x,v 1.12 2004/01/04 01:36:49 tom Exp $
+.\" $Id: curs_pad.3x,v 1.18 2015/07/21 08:58:44 tom Exp $
.TH curs_pad 3X ""
+.na
+.hy 0
.SH NAME
-\fBnewpad\fR, \fBsubpad\fR, \fBprefresh\fR,
+\fBnewpad\fR,
+\fBsubpad\fR,
+\fBprefresh\fR,
\fBpnoutrefresh\fR,
-\fBpechochar\fR, \fBpecho_wchar\fR - create and display \fBcurses\fR pads
+\fBpechochar\fR,
+\fBpecho_wchar\fR \- create and display \fBcurses\fR pads
+.ad
+.hy
.SH SYNOPSIS
\fB#include <curses.h>\fR
.sp
-\fBWINDOW *newpad(int nlines, int ncols);\fR
+\fBWINDOW *newpad(int \fP\fInlines\fP\fB, int \fP\fIncols\fP\fB);\fR
.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
-\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
-\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
-\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 *pad, const cchar_t *wch);\fR
+\fBint pecho_wchar(WINDOW *\fP\fIpad\fP\fB, const cchar_t *\fP\fIwch\fP\fB);\fR
.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,
\fIncols\fR.
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.
+.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.
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.
+.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
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
+The \fIpminrow\fR and \fIpmincol\fR parameters 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
+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,
Negative values of
\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
followed by a call to \fBrefresh\fR, a call to \fBwaddch\fR followed by a call
equivalents.
In the case of \fBpechochar\fR, the last location of the pad on
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.
.PP
Routines that return pointers return \fBNULL\fR on error, and set \fBerrno\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).
-.\"#
-.\"# The following sets edit modes for GNU EMACS
-.\"# Local Variables:
-.\"# mode:nroff
-.\"# fill-column:79
-.\"# End:
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