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29 * @Id: curs_getcchar.3x,v 1.17 2015/07/21 09:30:38 tom Exp @
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41 <H1 class="no-header">curs_getcchar 3x</H1>
43 <STRONG><A HREF="curs_getcchar.3x.html">curs_getcchar(3x)</A></STRONG> <STRONG><A HREF="curs_getcchar.3x.html">curs_getcchar(3x)</A></STRONG>
48 </PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
49 <STRONG>getcchar</STRONG>, <STRONG>setcchar</STRONG> - Get a wide character string and ren-
50 dition from a <STRONG>cchar_t</STRONG> or set a <STRONG>cchar_t</STRONG> from a wide-charac-
54 </PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
55 <STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
57 <STRONG>int</STRONG> <STRONG>getcchar(</STRONG>
58 <STRONG>const</STRONG> <STRONG>cchar_t</STRONG> <STRONG>*</STRONG><EM>wcval</EM><STRONG>,</STRONG>
59 <STRONG>wchar_t</STRONG> <STRONG>*</STRONG><EM>wch</EM><STRONG>,</STRONG>
60 <STRONG>attr_t</STRONG> <STRONG>*</STRONG><EM>attrs</EM><STRONG>,</STRONG>
61 <STRONG>short</STRONG> <STRONG>*</STRONG><EM>color</EM><STRONG>_</STRONG><EM>pair</EM><STRONG>,</STRONG>
62 <STRONG>void</STRONG> <STRONG>*</STRONG><EM>opts</EM> <STRONG>);</STRONG>
64 <STRONG>int</STRONG> <STRONG>setcchar(</STRONG>
65 <STRONG>cchar_t</STRONG> <STRONG>*</STRONG><EM>wcval</EM><STRONG>,</STRONG>
66 <STRONG>const</STRONG> <STRONG>wchar_t</STRONG> <STRONG>*</STRONG><EM>wch</EM><STRONG>,</STRONG>
67 <STRONG>const</STRONG> <STRONG>attr_t</STRONG> <EM>attrs</EM><STRONG>,</STRONG>
68 <STRONG>short</STRONG> <EM>color</EM><STRONG>_</STRONG><EM>pair</EM><STRONG>,</STRONG>
69 <STRONG>void</STRONG> <STRONG>*</STRONG><EM>opts</EM> <STRONG>);</STRONG>
72 </PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
74 </PRE><H3><a name="h3-getcchar">getcchar</a></H3><PRE>
75 The <STRONG>getcchar</STRONG> function gets a wide-character string and
76 rendition from a <STRONG>cchar_t</STRONG> argument. When <EM>wch</EM> is not a null
77 pointer, the <STRONG>getcchar</STRONG> function does the following:
79 <STRONG>o</STRONG> Extracts information from a <STRONG>cchar_t</STRONG> value <EM>wcval</EM>
81 <STRONG>o</STRONG> Stores the character attributes in the location
82 pointed to by <EM>attrs</EM>
84 <STRONG>o</STRONG> Stores the color-pair in the location pointed to by
85 <EM>color</EM><STRONG>_</STRONG><EM>pair</EM>
87 <STRONG>o</STRONG> Stores the wide-character string, characters refer-
88 enced by <EM>wcval</EM>, into the array pointed to by <EM>wch</EM>.
90 When <EM>wch</EM> is a null pointer, the <STRONG>getcchar</STRONG> function does the
93 <STRONG>o</STRONG> Obtains the number of wide characters pointed to by
96 <STRONG>o</STRONG> Does not change the data referenced by <EM>attrs</EM> or
97 <EM>color</EM><STRONG>_</STRONG><EM>pair</EM>
100 </PRE><H3><a name="h3-setcchar">setcchar</a></H3><PRE>
101 The <STRONG>setcchar</STRONG> function initializes the location pointed to
102 by <EM>wcval</EM> by using:
104 <STRONG>o</STRONG> The character attributes in <EM>attrs</EM>
106 <STRONG>o</STRONG> The color pair in <EM>color</EM><STRONG>_</STRONG><EM>pair</EM>
108 <STRONG>o</STRONG> The wide-character string pointed to by <EM>wch</EM>. The
109 string must be L'\0' terminated, contain at most one
110 spacing character, which must be the first.
112 Up to <STRONG>CCHARW_MAX</STRONG>-1 nonspacing characters may follow.
113 Additional nonspacing characters are ignored.
115 The string may contain a single control character
116 instead. In that case, no nonspacing characters are
120 </PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
121 The <EM>opts</EM> argument is reserved for future use. Currently,
122 an application must provide a null pointer as <EM>opts</EM>.
124 The <EM>wcval</EM> argument may be a value generated by a call to
125 <STRONG>setcchar</STRONG> or by a function that has a <STRONG>cchar_t</STRONG> output argu-
126 ment. If <EM>wcval</EM> is constructed by any other means, the
127 effect is unspecified.
130 </PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
131 When <EM>wch</EM> is a null pointer, <STRONG>getcchar</STRONG> returns the number of
132 wide characters referenced by <EM>wcval</EM>, including one for a
135 When <EM>wch</EM> is not a null pointer, <STRONG>getcchar</STRONG> returns <STRONG>OK</STRONG> upon
136 successful completion, and <STRONG>ERR</STRONG> otherwise.
138 Upon successful completion, <STRONG>setcchar</STRONG> returns <STRONG>OK</STRONG>. Other-
139 wise, it returns <STRONG>ERR</STRONG>.
142 </PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
143 Functions: <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>, <STRONG><A HREF="curs_color.3x.html">curs_color(3x)</A></STRONG>, <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>,
144 <STRONG>wcwidth(3)</STRONG>.
148 <STRONG><A HREF="curs_getcchar.3x.html">curs_getcchar(3x)</A></STRONG>
152 <li><a href="#h2-NAME">NAME</a></li>
153 <li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
154 <li><a href="#h2-DESCRIPTION">DESCRIPTION</a>
156 <li><a href="#h3-getcchar">getcchar</a></li>
157 <li><a href="#h3-setcchar">setcchar</a></li>
160 <li><a href="#h2-NOTES">NOTES</a></li>
161 <li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
162 <li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>