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-<TITLE>curs_pad 3x</TITLE>
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-<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
-</HEAD>
-<BODY>
-<H1>curs_pad 3x</H1>
-<HR>
-<PRE>
-<!-- Manpage converted by man2html 3.0.1 -->
-
-</PRE>
-<H2>NAME</H2><PRE>
- <STRONG>newpad</STRONG>, <STRONG>subpad</STRONG>, <STRONG>prefresh</STRONG>, <STRONG>pnoutrefresh</STRONG>, <STRONG>pechochar</STRONG> - create
- and display <STRONG>curses</STRONG> pads
-
-
-</PRE>
-<H2>SYNOPSIS</H2><PRE>
- <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>
-
- <STRONG>WINDOW</STRONG> <STRONG>*newpad(int</STRONG> <STRONG>nlines,</STRONG> <STRONG>int</STRONG> <STRONG>ncols);</STRONG>
- <STRONG>WINDOW</STRONG> <STRONG>*subpad(WINDOW</STRONG> <STRONG>*orig,</STRONG> <STRONG>int</STRONG> <STRONG>nlines,</STRONG> <STRONG>int</STRONG> <STRONG>ncols,</STRONG>
- <STRONG>int</STRONG> <STRONG>begin_y,</STRONG> <STRONG>int</STRONG> <STRONG>begin_x);</STRONG>
- <STRONG>int</STRONG> <STRONG>prefresh(WINDOW</STRONG> <STRONG>*pad,</STRONG> <STRONG>int</STRONG> <STRONG>pminrow,</STRONG> <STRONG>int</STRONG> <STRONG>pmincol,</STRONG>
- <STRONG>int</STRONG> <STRONG>sminrow,</STRONG> <STRONG>int</STRONG> <STRONG>smincol,</STRONG> <STRONG>int</STRONG> <STRONG>smaxrow,</STRONG> <STRONG>int</STRONG> <STRONG>smaxcol);</STRONG>
- <STRONG>int</STRONG> <STRONG>pnoutrefresh(WINDOW</STRONG> <STRONG>*pad,</STRONG> <STRONG>int</STRONG> <STRONG>pminrow,</STRONG> <STRONG>int</STRONG> <STRONG>pmincol,</STRONG>
- <STRONG>int</STRONG> <STRONG>sminrow,</STRONG> <STRONG>int</STRONG> <STRONG>smincol,</STRONG> <STRONG>int</STRONG> <STRONG>smaxrow,</STRONG> <STRONG>int</STRONG> <STRONG>smaxcol);</STRONG>
- <STRONG>int</STRONG> <STRONG>pechochar(WINDOW</STRONG> <STRONG>*pad,</STRONG> <STRONG>chtype</STRONG> <STRONG>ch);</STRONG>
-
-
-</PRE>
-<H2>DESCRIPTION</H2><PRE>
- The <STRONG>newpad</STRONG> routine creates and returns a pointer to a new
- pad data structure with the given number of lines, <EM>nlines</EM>,
- and columns, <EM>ncols</EM>. A pad is like a window, except that
- it is not restricted by the screen size, and is not neces-
- sarily 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 (<EM>e</EM>.<EM>g</EM>., from scrolling or echo-
- ing of input) do not occur. It is not legal to call <STRONG>wre-</STRONG>
- <STRONG>fresh</STRONG> with a <EM>pad</EM> as an argument; the routines <STRONG>prefresh</STRONG> or
- <STRONG>pnoutrefresh</STRONG> 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.
-
- The <STRONG>subpad</STRONG> routine creates and returns a pointer to a sub-
- window within a pad with the given number of lines,
- <EM>nlines</EM>, and columns, <EM>ncols</EM>. Unlike <STRONG>subwin</STRONG>, which uses
- screen coordinates, the window is at position (<EM>begin</EM>_<EM>x</EM><STRONG>,</STRONG>
- <EM>begin</EM>_<EM>y</EM>) on the pad. The window is made in the middle of
- the window <EM>orig</EM>, so that changes made to one window affect
- both windows. During the use of this routine, it will
- often be necessary to call <STRONG>touchwin</STRONG> or <STRONG>touchline</STRONG> on <EM>orig</EM>
- before calling <STRONG>prefresh</STRONG>.
-
- The <STRONG>prefresh</STRONG> and <STRONG>pnoutrefresh</STRONG> routines are analogous to
- <STRONG>wrefresh</STRONG> and <STRONG>wnoutrefresh</STRONG> 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.
- <EM>pminrow</EM> and <EM>pmincol</EM> specify the upper left-hand corner of
- the rectangle to be displayed in the pad. <EM>sminrow</EM>, <EM>smin-</EM>
- <EM>col</EM>, <EM>smaxrow</EM>, and <EM>smaxcol</EM> specify the edges of the rectan-
- gle to be displayed on the screen. The lower right-hand
- corner of the rectangle to be displayed in the pad is cal-
- culated 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 <EM>pminrow</EM>, <EM>pmincol</EM>, <EM>sminrow</EM>, or <EM>smincol</EM> are
- treated as if they were zero.
-
- The <STRONG>pechochar</STRONG> routine is functionally equivalent to a call
- to <STRONG>addch</STRONG> followed by a call to <STRONG>refresh</STRONG>, a call to <STRONG>waddch</STRONG>
- followed by a call to <STRONG>wrefresh</STRONG>, or a call to <STRONG>waddch</STRONG> fol-
- lowed by a call to <STRONG>prefresh.</STRONG> The knowledge that only a
- single character is being output is taken into considera-
- tion and, for non-control characters, a considerable per-
- formance gain might be seen by using these routines
- instead of their equivalents. In the case of <STRONG>pechochar</STRONG>,
- the last location of the pad on the screen is reused for
- the arguments to <STRONG>prefresh</STRONG>.
-
-
-</PRE>
-<H2>RETURN VALUE</H2><PRE>
- Routines that return an integer return <STRONG>ERR</STRONG> upon failure
- and <STRONG>OK</STRONG> (SVr4 only specifies "an integer value other than
- <STRONG>ERR</STRONG>") upon successful completion.
-
- Routines that return pointers return <STRONG>NULL</STRONG> on error, and
- set <STRONG>errno</STRONG> to <STRONG>ENOMEM</STRONG>.
-
-
-</PRE>
-<H2>NOTES</H2><PRE>
- Note that <STRONG>pechochar</STRONG> may be a macro.
-
-
-</PRE>
-<H2>PORTABILITY</H2><PRE>
- The XSI Curses standard, Issue 4 describes these func-
- tions.
-
-
-</PRE>
-<H2>SEE ALSO</H2><PRE>
- <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_refresh.3x.html">curs_refresh(3x)</A></STRONG>, <STRONG><A HREF="curs_touch.3x.html">curs_touch(3x)</A></STRONG>,
- <STRONG><A HREF="curs_addch.3x.html">curs_addch(3x)</A></STRONG>.
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-<HR>
-<ADDRESS>
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