release/src/router/libncurses/doc/html/man/curs_get_wstr.3x.html

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  30   * @Id: curs_get_wstr.3x,v 1.8 2010/12/04 18:36:44 tom Exp @
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  34 <TITLE>curs_get_wstr 3x</TITLE>
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  39 <H1>curs_get_wstr 3x</H1>
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  41 <PRE>
  42 <!-- Manpage converted by man2html 3.0.1 -->
  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>
  49 <H2>NAME</H2><PRE>
  50        <STRONG>get_wstr</STRONG>, <STRONG>getn_wstr</STRONG>, <STRONG>wget_wstr</STRONG>, <STRONG>wgetn_wstr</STRONG>, <STRONG>mvget_wstr</STRONG>,
  51        <STRONG>mvgetn_wstr</STRONG>, <STRONG>mvwget_wstr</STRONG>, <STRONG>mvwgetn_wstr</STRONG> - get an array of
  52        wide characters from a curses terminal keyboard
  53
  54
  55 </PRE>
  56 <H2>SYNOPSIS</H2><PRE>
  57        <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>
  58
  59        <STRONG>int</STRONG> <STRONG>get_wstr(wint_t</STRONG> <STRONG>*</STRONG><EM>wstr</EM><STRONG>);</STRONG>
  60        <STRONG>int</STRONG> <STRONG>getn_wstr(wint_t</STRONG> <STRONG>*</STRONG><EM>wstr</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>n</EM><STRONG>);</STRONG>
  61        <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>
  62        <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>
  63        <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>
  64        <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>
  65        <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>
  66        <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>
  67
  68
  69 </PRE>
  70 <H2>DESCRIPTION</H2><PRE>
  71        The  effect  of <STRONG>get_wstr</STRONG> is as though a series of calls to
  72        <STRONG>get_wch</STRONG> were made, until a newline, other end-of-line,  or
  73        end-of-file condition is processed.  An end-of-file condi-
  74        tion is represented by <STRONG>WEOF</STRONG>, as defined in <STRONG>&lt;wchar.h&gt;</STRONG>.  The
  75        newline  and end-of-line conditions are represented by the
  76        <STRONG>\n</STRONG> <STRONG>wchar_t</STRONG> value.  In all instances, the end of the string
  77        is  terminated  by a null <STRONG>wchar_t</STRONG>.  The routine places re-
  78        sulting values in the area pointed to by <EM>wstr</EM>.
  79
  80        The user's erase and kill characters are interpreted.   If
  81        keypad   mode   is   on   for  the  window,  <STRONG>KEY_LEFT</STRONG>  and
  82        <STRONG>KEY_BACKSPACE</STRONG> are both considered equivalent to the user's
  83        kill character.
  84
  85        Characters  input are echoed only if <STRONG>echo</STRONG> is currently on.
  86        In that case, backspace is echoed as deletion of the  pre-
  87        vious character (typically a left motion).
  88
  89        The  effect of <STRONG>wget_wstr</STRONG> is as though a series of calls to
  90        <STRONG>wget_wch</STRONG> were made.
  91
  92        The effect of <STRONG>mvget_wstr</STRONG> is as though a call to  <STRONG>move</STRONG>  and
  93        then a series of calls to <STRONG>get_wch</STRONG> were made.
  94
  95        The effect of <STRONG>mvwget_wstr</STRONG> is as though a call to <STRONG>wmove</STRONG> and
  96        then a series of calls to <STRONG>wget_wch</STRONG> were made.
  97
  98        The <STRONG>getn_wstr</STRONG>, <STRONG>mvgetn_wstr</STRONG>, <STRONG>mvwgetn_wstr</STRONG>,  and  <STRONG>wgetn_wstr</STRONG>
  99        functions  are  identical  to  the  <STRONG>get_wstr</STRONG>,  <STRONG>mvget_wstr</STRONG>,
 100        <STRONG>mvwget_wstr</STRONG>, and <STRONG>wget_wstr</STRONG> functions, respectively, except
 101        that  the <STRONG>*n_*</STRONG> versions read at most <EM>n</EM> characters, letting
 102        the application prevent overflow of the input buffer.
 103
 104
 105 </PRE>
 106 <H2>NOTES</H2><PRE>
 107        Using <STRONG>get_wstr</STRONG>, <STRONG>mvget_wstr</STRONG>, <STRONG>mvwget_wstr</STRONG>, or  <STRONG>wget_wstr</STRONG>  to
 108        read  a  line  that overflows the array pointed to by <STRONG>wstr</STRONG>
 109        causes  undefined  results.    The   use   of   <STRONG>getn_wstr</STRONG>,
 110        <STRONG>mvgetn_wstr</STRONG>, <STRONG>mvwgetn_wstr</STRONG>, or <STRONG>wgetn_wstr</STRONG>, respectively, is
 111        recommended.
 112
 113        These functions cannot return <STRONG>KEY_</STRONG> values because there is
 114        no  way  to  distinguish a <STRONG>KEY_</STRONG> value from a valid <STRONG>wchar_t</STRONG>
 115        value.
 116
 117        All of these routines except <STRONG>wgetn_wstr</STRONG> may be macros.
 118
 119
 120 </PRE>
 121 <H2>RETURN VALUES</H2><PRE>
 122        All of these functions return <STRONG>OK</STRONG> upon  successful  comple-
 123        tion.  Otherwise, they return <STRONG>ERR</STRONG>.
 124
 125        Functions  using  a window parameter return an error if it
 126        is null.
 127
 128               <STRONG>wgetn_wstr</STRONG>
 129                    returns an error if  the  associated  call  to
 130                    <STRONG>wget_wch</STRONG> failed.
 131
 132        Functions  with a "mv" prefix first perform a cursor move-
 133        ment using <STRONG>wmove</STRONG>, and return an error if the  position  is
 134        outside the window, or if the window pointer is null.
 135
 136
 137 </PRE>
 138 <H2>PORTABILITY</H2><PRE>
 139        These  functions are described in The Single Unix Specifi-
 140        cation, Version 2.  No error conditions are defined.  This
 141        implementation  returns ERR if the window pointer is null,
 142        or if the lower-level <STRONG>wget_wch</STRONG> call returns  an  ERR.   In
 143        the  latter  case,  an  ERR  return  without other data is
 144        treated as an end-of-file condition, and the returned  ar-
 145        ray contains a <STRONG>WEOF</STRONG> followed by a null <STRONG>wchar_t</STRONG>.
 146
 147        X/Open  curses  documents these functions to pass an array
 148        of <STRONG>wchar_t</STRONG>, but all of the vendors  implement  this  using
 149        <STRONG>wint_t</STRONG>.
 150
 151
 152 </PRE>
 153 <H2>SEE ALSO</H2><PRE>
 154        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>.
 155
 156
 157
 158                                                       <STRONG><A HREF="curs_get_wstr.3x.html">curs_get_wstr(3x)</A></STRONG>
 159 </PRE>
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