doc/html/man/form_field_new.3x.html

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