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<H1 class="no-header">curs_instr 3x</H1>
<PRE>
<STRONG><A HREF="curs_instr.3x.html">curs_instr(3x)</A></STRONG> <STRONG><A HREF="curs_instr.3x.html">curs_instr(3x)</A></STRONG>
</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
<STRONG>instr</STRONG>, <STRONG>innstr</STRONG>, <STRONG>winstr</STRONG>, <STRONG>winnstr</STRONG>, <STRONG>mvinstr</STRONG>, <STRONG>mvinnstr</STRONG>, <STRONG>mvwinstr</STRONG>, <STRONG>mvwinnstr</STRONG>
- get a string of characters from a <STRONG>curses</STRONG> window
</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
<STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
<STRONG>int</STRONG> <STRONG>instr(char</STRONG> <STRONG>*str);</STRONG>
<STRONG>int</STRONG> <STRONG>innstr(char</STRONG> <STRONG>*str,</STRONG> <STRONG>int</STRONG> <STRONG>n);</STRONG>
<STRONG>int</STRONG> <STRONG>winstr(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>char</STRONG> <STRONG>*str);</STRONG>
<STRONG>int</STRONG> <STRONG>winnstr(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>char</STRONG> <STRONG>*str,</STRONG> <STRONG>int</STRONG> <STRONG>n);</STRONG>
<STRONG>int</STRONG> <STRONG>mvinstr(int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>char</STRONG> <STRONG>*str);</STRONG>
<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>
<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>
<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> <STRONG>n);</STRONG>
</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
These routines return a string of characters in <EM>str</EM>, extracted starting
at the current cursor position in the named window. Attributes are
stripped from the characters. The four functions with <EM>n</EM> as the last
argument return a leading substring at most <EM>n</EM> characters long (exclu-
sive of the trailing NUL).
</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
All of the functions return <STRONG>ERR</STRONG> upon failure, or the number of charac-
ters actually read into the string.
X/Open Curses defines no error conditions. In this implementation:
<STRONG>o</STRONG> If the <EM>win</EM> parameter is null, an error is returned,
<STRONG>o</STRONG> If the <EM>chstr</EM> parameter is null, an error is returned,
Functions with a "mv" prefix first perform a cursor movement using
<STRONG>wmove</STRONG>, and return an error if the position is outside the window, or if
the window pointer is null.
</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
Note that all routines except <STRONG>winnstr</STRONG> may be macros.
</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
SVr4 does not document whether a length limit includes or excludes the
trailing NUL.
The ncurses library extends the XSI description by allowing a negative
value for <EM>n</EM>. In this case, the functions return the string ending at
the right margin.
</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
<STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>.
<STRONG><A HREF="curs_instr.3x.html">curs_instr(3x)</A></STRONG>
</PRE>
<div class="nav">
<ul>
<li><a href="#h2-NAME">NAME</a></li>
<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
<li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
<li><a href="#h2-NOTES">NOTES</a></li>
<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
</ul>
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