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123 lines
6.7 KiB
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****************************************************************************
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****************************************************************************
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* @Id: curs_instr.3x,v 1.16 2010/12/04 18:38:55 tom Exp @
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
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<HTML>
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<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
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<meta name="generator" content="Manpage converted by man2html - see http://invisible-island.net/scripts/readme.html#others_scripts">
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<TITLE>curs_instr 3x</TITLE>
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<link rev=made href="mailto:bug-ncurses@gnu.org">
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<H1 class="no-header">curs_instr 3x</H1>
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<PRE>
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<STRONG><A HREF="curs_instr.3x.html">curs_instr(3x)</A></STRONG> <STRONG><A HREF="curs_instr.3x.html">curs_instr(3x)</A></STRONG>
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</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
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<STRONG>instr</STRONG>, <STRONG>innstr</STRONG>, <STRONG>winstr</STRONG>, <STRONG>winnstr</STRONG>, <STRONG>mvinstr</STRONG>, <STRONG>mvinnstr</STRONG>, <STRONG>mvwin-</STRONG>
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<STRONG>str</STRONG>, <STRONG>mvwinnstr</STRONG> - get a string of characters from a <STRONG>curses</STRONG>
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window
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</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
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<STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
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<STRONG>int</STRONG> <STRONG>instr(char</STRONG> <STRONG>*str);</STRONG>
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<STRONG>int</STRONG> <STRONG>innstr(char</STRONG> <STRONG>*str,</STRONG> <STRONG>int</STRONG> <STRONG>n);</STRONG>
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<STRONG>int</STRONG> <STRONG>winstr(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>char</STRONG> <STRONG>*str);</STRONG>
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<STRONG>int</STRONG> <STRONG>winnstr(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>char</STRONG> <STRONG>*str,</STRONG> <STRONG>int</STRONG> <STRONG>n);</STRONG>
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<STRONG>int</STRONG> <STRONG>mvinstr(int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>char</STRONG> <STRONG>*str);</STRONG>
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<STRONG>int</STRONG> <STRONG>mvinnstr(int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>char</STRONG> <STRONG>*str,</STRONG> <STRONG>int</STRONG> <STRONG>n);</STRONG>
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<STRONG>int</STRONG> <STRONG>mvwinstr(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>char</STRONG> <STRONG>*str);</STRONG>
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<STRONG>int</STRONG> <STRONG>mvwinnstr(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>char</STRONG> <STRONG>*str,</STRONG> <STRONG>int</STRONG>
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<STRONG>n);</STRONG>
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</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
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These routines return a string of characters in <EM>str</EM>,
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extracted starting at the current cursor position in the
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named window. Attributes are stripped from the charac-
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ters. The four functions with <EM>n</EM> as the last argument
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return a leading substring at most <EM>n</EM> characters long
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(exclusive of the trailing NUL).
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</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
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All of the functions return <STRONG>ERR</STRONG> upon failure, or the num-
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ber of characters actually read into the string.
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X/Open defines no error conditions. In this implementa-
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tion, if the window parameter is null or the str parameter
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is null, a zero is returned.
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Functions with a "mv" prefix first perform a cursor move-
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ment using <STRONG>wmove</STRONG>, and return an error if the position is
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outside the window, or if the window pointer is null.
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</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
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Note that all routines except <STRONG>winnstr</STRONG> may be macros.
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</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
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SVr4 does not document whether a length limit includes or
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excludes the trailing NUL.
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The ncurses library extends the XSI description by allow-
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ing a negative value for <EM>n</EM>. In this case, the functions
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return the string ending at the right margin.
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</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
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<STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>.
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<STRONG><A HREF="curs_instr.3x.html">curs_instr(3x)</A></STRONG>
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</PRE>
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<div class="nav">
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<ul>
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<li><a href="#h2-NAME">NAME</a></li>
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<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
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<li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
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<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
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<li><a href="#h2-NOTES">NOTES</a></li>
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<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
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<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
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</ul>
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</div>
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