ncurses 5.3
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34 <TITLE>curs_instr 3x</TITLE>
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39 <H1>curs_instr 3x</H1>
40 <HR>
41 <PRE>
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43
44 </PRE>
45 <H2>NAME</H2><PRE>
46        <STRONG>instr</STRONG>,  <STRONG>innstr</STRONG>, <STRONG>winstr</STRONG>, <STRONG>winnstr</STRONG>, <STRONG>mvinstr</STRONG>, <STRONG>mvinnstr</STRONG>, <STRONG>mvwin-</STRONG>
47        <STRONG>str</STRONG>, <STRONG>mvwinnstr</STRONG> - get a string of characters from a  <STRONG>curses</STRONG>
48        window
49
50
51 </PRE>
52 <H2>SYNOPSIS</H2><PRE>
53        <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>
54
55        <STRONG>int</STRONG> <STRONG>instr(char</STRONG> <STRONG>*str);</STRONG>
56        <STRONG>int</STRONG> <STRONG>innstr(char</STRONG> <STRONG>*str,</STRONG> <STRONG>int</STRONG> <STRONG>n);</STRONG>
57        <STRONG>int</STRONG> <STRONG>winstr(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>char</STRONG> <STRONG>*str);</STRONG>
58        <STRONG>int</STRONG> <STRONG>winnstr(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>char</STRONG> <STRONG>*str,</STRONG> <STRONG>int</STRONG> <STRONG>n);</STRONG>
59        <STRONG>int</STRONG> <STRONG>mvinstr(int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>char</STRONG> <STRONG>*str);</STRONG>
60        <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>
61        <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>
62        <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>
63        <STRONG>n);</STRONG>
64
65
66 </PRE>
67 <H2>DESCRIPTION</H2><PRE>
68        These routines return  a  string  of  characters  in  <EM>str</EM>,
69        extracted  starting  at the current cursor position in the
70        named window.  Attributes are stripped  from  the  charac-
71        ters.   The  four  functions  with  <EM>n</EM> as the last argument
72        return a leading  substring  at  most  <EM>n</EM>  characters  long
73        (exclusive of the trailing NUL).
74
75
76 </PRE>
77 <H2>RETURN VALUE</H2><PRE>
78        All  of the functions return <STRONG>ERR</STRONG> upon failure, or the num-
79        ber of characters actually read into the string.
80
81
82 </PRE>
83 <H2>NOTES</H2><PRE>
84        Note that all routines except <STRONG>winnstr</STRONG> may be macros.
85
86
87 </PRE>
88 <H2>PORTABILITY</H2><PRE>
89        The XSI Curses error  conditions  <STRONG>EILSEQ</STRONG>  and  <STRONG>EILOVERFLOW</STRONG>
90        associated  with  extended-level  conformance  are not yet
91        detected (this implementation does not  yet  support  XPG4
92        multibyte  characters).   SVr4 does not document whether a
93        length limit includes or excludes the trailing NUL.
94
95        The ncurses library extends the XSI description by  allow-
96        ing  a  negative value for <EM>n</EM>.  In this case, the functions
97        return the string ending at the right margin.
98
99
100 </PRE>
101 <H2>SEE ALSO</H2><PRE>
102        <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>.
103
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110
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