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41 <H1 class="no-header">curs_get_wstr 3x</H1>
42 <PRE>
43 <STRONG><A HREF="curs_get_wstr.3x.html">curs_get_wstr(3x)</A></STRONG>                                            <STRONG><A HREF="curs_get_wstr.3x.html">curs_get_wstr(3x)</A></STRONG>
44
45
46
47
48 </PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
49        <STRONG>get_wstr</STRONG>, <STRONG>getn_wstr</STRONG>, <STRONG>wget_wstr</STRONG>, <STRONG>wgetn_wstr</STRONG>, <STRONG>mvget_wstr</STRONG>, <STRONG>mvgetn_wstr</STRONG>,
50        <STRONG>mvwget_wstr</STRONG>, <STRONG>mvwgetn_wstr</STRONG> - get an array of wide characters from a
51        curses terminal keyboard
52
53
54 </PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
55        <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>
56
57        <STRONG>int</STRONG> <STRONG>get_wstr(wint_t</STRONG> <STRONG>*</STRONG><EM>wstr</EM><STRONG>);</STRONG>
58        <STRONG>int</STRONG> <STRONG>getn_wstr(wint_t</STRONG> <STRONG>*</STRONG><EM>wstr</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>n</EM><STRONG>);</STRONG>
59        <STRONG>int</STRONG> <STRONG>wget_wstr(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>wint_t</STRONG> <STRONG>*</STRONG><EM>wstr</EM><STRONG>);</STRONG>
60        <STRONG>int</STRONG> <STRONG>wgetn_wstr(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>wint_t</STRONG> <STRONG>*</STRONG><EM>wstr</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>n</EM><STRONG>);</STRONG>
61        <STRONG>int</STRONG> <STRONG>mvget_wstr(int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>wint_t</STRONG> <STRONG>*</STRONG><EM>wstr</EM><STRONG>);</STRONG>
62        <STRONG>int</STRONG> <STRONG>mvgetn_wstr(int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>wint_t</STRONG> <STRONG>*</STRONG><EM>wstr</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>n</EM><STRONG>);</STRONG>
63        <STRONG>int</STRONG> <STRONG>mvwget_wstr(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>wint_t</STRONG> <STRONG>*</STRONG><EM>wstr</EM><STRONG>);</STRONG>
64        <STRONG>int</STRONG> <STRONG>mvwgetn_wstr(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>wint_t</STRONG> <STRONG>*</STRONG><EM>wstr</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>n</EM><STRONG>);</STRONG>
65
66
67 </PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
68        The  effect  of  <STRONG>get_wstr</STRONG> is as though a series of calls to <STRONG><A HREF="curs_get_wch.3x.html">get_wch(3x)</A></STRONG>
69        were made, until a newline, other end-of-line, or end-of-file condition
70        is  processed.  An end-of-file condition is represented by <STRONG>WEOF</STRONG>, as de-
71        fined in <STRONG>&lt;wchar.h&gt;</STRONG>.  The newline and end-of-line conditions are  repre-
72        sented  by  the  <STRONG>\n</STRONG>  <STRONG>wchar_t</STRONG>  value.   In all instances, the end of the
73        string is terminated by a null <STRONG>wchar_t</STRONG>.  The routine  places  resulting
74        values in the area pointed to by <EM>wstr</EM>.
75
76        The  user's  erase and kill characters are interpreted.  If keypad mode
77        is on for the window, <STRONG>KEY_LEFT</STRONG> and <STRONG>KEY_BACKSPACE</STRONG>  are  both  considered
78        equivalent to the user's kill character.
79
80        Characters  input  are  echoed  only  if <STRONG>echo</STRONG> is currently on.  In that
81        case, backspace is echoed as deletion of the previous character  (typi-
82        cally a left motion).
83
84        The effect of <STRONG>wget_wstr</STRONG> is as though a series of calls to <STRONG>wget_wch</STRONG> were
85        made.
86
87        The effect of <STRONG>mvget_wstr</STRONG> is as though a call to <STRONG>move</STRONG> and then a  series
88        of calls to <STRONG>get_wch</STRONG> were made.
89
90        The  effect  of <STRONG>mvwget_wstr</STRONG> is as though a call to <STRONG>wmove</STRONG> and then a se-
91        ries of calls to <STRONG>wget_wch</STRONG> were made.
92
93        The <STRONG>getn_wstr</STRONG>, <STRONG>mvgetn_wstr</STRONG>, <STRONG>mvwgetn_wstr</STRONG>, and <STRONG>wgetn_wstr</STRONG> functions  are
94        identical to the <STRONG>get_wstr</STRONG>, <STRONG>mvget_wstr</STRONG>, <STRONG>mvwget_wstr</STRONG>, and <STRONG>wget_wstr</STRONG> func-
95        tions, respectively, except that the <STRONG>*n_*</STRONG> versions read at most <EM>n</EM> char-
96        acters, letting the application prevent overflow of the input buffer.
97
98
99 </PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
100        Using  <STRONG>get_wstr</STRONG>,  <STRONG>mvget_wstr</STRONG>,  <STRONG>mvwget_wstr</STRONG>, or <STRONG>wget_wstr</STRONG> to read a line
101        that overflows the array pointed to by <STRONG>wstr</STRONG> causes  undefined  results.
102        The use of <STRONG>getn_wstr</STRONG>, <STRONG>mvgetn_wstr</STRONG>, <STRONG>mvwgetn_wstr</STRONG>, or <STRONG>wgetn_wstr</STRONG>, respec-
103        tively, is recommended.
104
105        These functions cannot return <STRONG>KEY_</STRONG> values because there is  no  way  to
106        distinguish a <STRONG>KEY_</STRONG> value from a valid <STRONG>wchar_t</STRONG> value.
107
108        All of these routines except <STRONG>wgetn_wstr</STRONG> may be macros.
109
110
111 </PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
112        All  of  these  functions return <STRONG>OK</STRONG> upon successful completion.  Other-
113        wise, they return <STRONG>ERR</STRONG>.
114
115        Functions using a window parameter return an error if it is null.
116
117               <STRONG>wgetn_wstr</STRONG>
118                    returns an error if the associated call to <STRONG>wget_wch</STRONG> failed.
119
120        Functions with a "mv" prefix first  perform  a  cursor  movement  using
121        <STRONG>wmove</STRONG>, and return an error if the position is outside the window, or if
122        the window pointer is null.
123
124
125 </PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
126        These functions are described in The Single Unix Specification, Version
127        2.   No  error conditions are defined.  This implementation returns <STRONG>ERR</STRONG>
128        if the window pointer is null, or if the lower-level <STRONG>wget_wch</STRONG> call  re-
129        turns  an <STRONG>ERR</STRONG>.  In the latter case, an <STRONG>ERR</STRONG> return without other data is
130        treated as an end-of-file condition, and the returned array contains  a
131        <STRONG>WEOF</STRONG> followed by a null <STRONG>wchar_t</STRONG>.
132
133        X/Open curses documented these functions to pass an array of <STRONG>wchar_t</STRONG> in
134        1997, but that was an error because of this part of the description:
135
136               The effect of <EM>get</EM><STRONG>_</STRONG><EM>wstr()</EM> is as  though  a  series  of  calls  to
137               <EM>get</EM><STRONG>_</STRONG><EM>wch()</EM>  were  made,  until  a  newline character, end-of-line
138               character, or end-of-file character is processed.
139
140        The latter function  <EM>get</EM><STRONG>_</STRONG><EM>wch()</EM>  can  return  a  negative  value,  while
141        <STRONG>wchar_t</STRONG>  is  a  unsigned type.  All of the vendors implement this using
142        <STRONG>wint_t</STRONG>, following the standard.
143
144
145 </PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
146        Functions: <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_get_wch.3x.html">curs_get_wch(3x)</A></STRONG>, <STRONG><A HREF="curs_getstr.3x.html">curs_getstr(3x)</A></STRONG>.
147
148
149
150                                                              <STRONG><A HREF="curs_get_wstr.3x.html">curs_get_wstr(3x)</A></STRONG>
151 </PRE>
152 <div class="nav">
153 <ul>
154 <li><a href="#h2-NAME">NAME</a></li>
155 <li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
156 <li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
157 <li><a href="#h2-NOTES">NOTES</a></li>
158 <li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
159 <li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
160 <li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
161 </ul>
162 </div>
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