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  43 <H1 class="no-header">form_field_new 3x</H1>
  44 <PRE>
  45 <STRONG><A HREF="form_field_new.3x.html">form_field_new(3x)</A></STRONG>                                          <STRONG><A HREF="form_field_new.3x.html">form_field_new(3x)</A></STRONG>
  46
  47
  48
  49
  50 </PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
  51        <STRONG>new_field</STRONG>,  <STRONG>dup_field</STRONG>, <STRONG>link_field</STRONG>, <STRONG>free_field</STRONG> - create and destroy form
  52        fields
  53
  54
  55 </PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
  56        <STRONG>#include</STRONG> <STRONG>&lt;form.h&gt;</STRONG>
  57        FIELD *new_field(int height, int width,
  58                         int toprow, int leftcol,
  59                         int offscreen, int nbuffers);
  60        FIELD *dup_field(FIELD *field, int toprow, int leftcol);
  61        FIELD *link_field(FIELD *field, int toprow, int leftcol);
  62        int free_field(FIELD *field);
  63
  64
  65 </PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
  66        The function <STRONG>new_field</STRONG> allocates a new field and  initializes  it  from
  67        the  parameters  given: height, width, row of upper-left corner, column
  68        of upper-left corner, number off-screen rows, and number of  additional
  69        working buffers.
  70
  71        The  function  <STRONG>dup_field</STRONG>  duplicates  a  field at a new location.  Most
  72        attributes (including current contents, size, validation  type,  buffer
  73        count,  growth  threshold,  justification,  foreground, background, pad
  74        character, options, and user pointer) are copied.  Field status and the
  75        field page bit are not copied.
  76
  77        The  function  <STRONG>link_field</STRONG> acts like <STRONG>dup_field</STRONG>, but the new field shares
  78        buffers with its parent.  Attribute data is separate.
  79
  80        The function <STRONG>free_field</STRONG> de-allocates storage associated with a field.
  81
  82
  83 </PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
  84        The functions <STRONG>new_field</STRONG>, <STRONG>dup_field</STRONG>, <STRONG>link_field</STRONG> return  <STRONG>NULL</STRONG>  on  error.
  85        They set <STRONG>errno</STRONG> according to their success:
  86
  87        <STRONG>E_OK</STRONG> The routine succeeded.
  88
  89        <STRONG>E_BAD_ARGUMENT</STRONG>
  90             Routine detected an incorrect or out-of-range argument.
  91
  92        <STRONG>E_SYSTEM_ERROR</STRONG>
  93             System error occurred, e.g., malloc failure.
  94
  95        The function <STRONG>free_field</STRONG> returns one of the following:
  96
  97        <STRONG>E_OK</STRONG> The routine succeeded.
  98
  99        <STRONG>E_BAD_ARGUMENT</STRONG>
 100             Routine detected an incorrect or out-of-range argument.
 101
 102        <STRONG>E_CONNECTED</STRONG>
 103             field is connected.
 104
 105
 106 </PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
 107        <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="form.3x.html">form(3x)</A></STRONG>.
 108
 109
 110 </PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
 111        The  header  file  <STRONG>&lt;form.h&gt;</STRONG>  automatically  includes  the  header  file
 112        <STRONG>&lt;curses.h&gt;</STRONG>.
 113
 114
 115 </PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
 116        These routines emulate the System V forms library.  They were not  sup-
 117        ported on Version 7 or BSD versions.
 118
 119        It  may be unwise to count on the set of attributes copied by <STRONG>dup_field</STRONG>
 120        being portable; the System V  forms  library  documents  are  not  very
 121        explicit about what gets copied and what does not.
 122
 123
 124 </PRE><H2><a name="h2-AUTHORS">AUTHORS</a></H2><PRE>
 125        Juergen Pfeifer.  Manual pages and adaptation for new curses by Eric S.
 126        Raymond.
 127
 128
 129
 130                                                             <STRONG><A HREF="form_field_new.3x.html">form_field_new(3x)</A></STRONG>
 131 </PRE>
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 134 <li><a href="#h2-NAME">NAME</a></li>
 135 <li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
 136 <li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
 137 <li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
 138 <li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
 139 <li><a href="#h2-NOTES">NOTES</a></li>
 140 <li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
 141 <li><a href="#h2-AUTHORS">AUTHORS</a></li>
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