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<H1 class="no-header">curs_inwstr 3x 2024-04-20 ncurses 6.5 Library calls</H1>
<PRE>
<STRONG><A HREF="curs_inwstr.3x.html">curs_inwstr(3x)</A></STRONG> Library calls <STRONG><A HREF="curs_inwstr.3x.html">curs_inwstr(3x)</A></STRONG>
</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
<STRONG>inwstr</STRONG>, <STRONG>innwstr</STRONG>, <STRONG>winwstr</STRONG>, <STRONG>winnwstr</STRONG>, <STRONG>mvinwstr</STRONG>, <STRONG>mvinnwstr</STRONG>, <STRONG>mvwinwstr</STRONG>,
<STRONG>mvwinnwstr</STRONG> - get a wide-character string from a <EM>curses</EM> window
</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
<STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
<STRONG>int</STRONG> <STRONG>inwstr(wchar_t</STRONG> <STRONG>*</STRONG><EM>wstr</EM><STRONG>);</STRONG>
<STRONG>int</STRONG> <STRONG>innwstr(wchar_t</STRONG> <STRONG>*</STRONG><EM>wstr</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>n</EM><STRONG>);</STRONG>
<STRONG>int</STRONG> <STRONG>winwstr(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>wchar_t</STRONG> <STRONG>*</STRONG><EM>wstr</EM><STRONG>);</STRONG>
<STRONG>int</STRONG> <STRONG>winnwstr(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>wchar_t</STRONG> <STRONG>*</STRONG><EM>wstr</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>n</EM><STRONG>);</STRONG>
<STRONG>int</STRONG> <STRONG>mvinwstr(int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>wchar_t</STRONG> <STRONG>*</STRONG><EM>wstr</EM><STRONG>);</STRONG>
<STRONG>int</STRONG> <STRONG>mvinnwstr(int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>wchar_t</STRONG> <STRONG>*</STRONG><EM>wstr</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>n</EM><STRONG>);</STRONG>
<STRONG>int</STRONG> <STRONG>mvwinwstr(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>wchar_t</STRONG> <STRONG>*</STRONG><EM>wstr</EM><STRONG>);</STRONG>
<STRONG>int</STRONG> <STRONG>mvwinnwstr(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>wchar_t</STRONG> <STRONG>*</STRONG><EM>wstr</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>n</EM><STRONG>);</STRONG>
</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
These routines return a string of <STRONG>wchar_t</STRONG> wide characters in <EM>wstr</EM>,
starting at the current cursor position in the named window.
The four functions with <EM>n</EM> as the last argument return a leading
substring at most <EM>n</EM> characters long (exclusive of the trailing NUL).
Transfer stops at the end of the current line, or when <EM>n</EM> characters
have been stored at the location referenced by <EM>wstr</EM>.
If the size <EM>n</EM> is not large enough to store a complete complex
character, an error is generated.
</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
All routines return <STRONG>ERR</STRONG> upon failure. Upon successful completion, the
*<STRONG>inwstr</STRONG> routines return <STRONG>OK</STRONG>, and the *<STRONG>innwstr</STRONG> routines return the number
of characters read into the string.
X/Open defines no error conditions. This implementation returns an
error
<STRONG>o</STRONG> if the <EM>win</EM> parameter is null or
<STRONG>o</STRONG> if the <EM>wstr</EM> parameter is null, or
<STRONG>o</STRONG> if no characters could be read.
Functions prefixed with "mv" first perform cursor movement and fail if
the position (<EM>y</EM>, <EM>x</EM>) is outside the window boundaries.
</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
All routines except <STRONG>winnwstr</STRONG> may be macros.
Each cell in the window holds a complex character (a spacing character
and zero or more non-spacing characters) together with attributes and
color. These functions store only the wide characters, ignoring
attributes and color. Use <STRONG>in_wchstr</STRONG> to return the complex characters
from a window.
Reading a line that overflows the array pointed to by <EM>wstr</EM> with <STRONG>inwstr</STRONG>,
<STRONG>mvinwstr</STRONG>, <STRONG>mvwinwstr</STRONG> or <STRONG>winwstr</STRONG> causes undefined results. Therefore,
the use of <STRONG>innwstr</STRONG>, <STRONG>mvinnwstr</STRONG>, <STRONG>mvwinnwstr</STRONG>, or <STRONG>winnwstr</STRONG> is recommended.
</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
These functions are described in X/Open Curses, Issue 4.
</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_inch.3x.html">curs_inch(3x)</A></STRONG>, <STRONG><A HREF="curs_inchstr.3x.html">curs_inchstr(3x)</A></STRONG>, <STRONG><A HREF="curs_instr.3x.html">curs_instr(3x)</A></STRONG>,
<STRONG><A HREF="curs_in_wchstr.3x.html">curs_in_wchstr(3x)</A></STRONG>
ncurses 6.5 2024-04-20 <STRONG><A HREF="curs_inwstr.3x.html">curs_inwstr(3x)</A></STRONG>
</PRE>
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<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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