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
  51        destroy form 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  initial-
  66        izes  it  from the parameters given: height, width, row of
  67        upper-left corner, column  of  upper-left  corner,  number
  68        off-screen rows, and number of additional working buffers.
  69
  70        The  function  <STRONG>dup_field</STRONG> duplicates a field at a new loca-
  71        tion.  Most attributes (including current contents,  size,
  72        validation  type, buffer count, growth threshold, justifi-
  73        cation, foreground, background,  pad  character,  options,
  74        and  user pointer) are copied.  Field status and the field
  75        page bit are not copied.
  76
  77        The function <STRONG>link_field</STRONG> acts like <STRONG>dup_field</STRONG>, but  the  new
  78        field  shares  buffers with its parent.  Attribute data is
  79        separate.
  80
  81        The function <STRONG>free_field</STRONG>  de-allocates  storage  associated
  82        with a field.
  83
  84
  85 </PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
  86        The function, <STRONG>new_field</STRONG>, <STRONG>dup_field</STRONG>, <STRONG>link_field</STRONG> return <STRONG>NULL</STRONG>
  87        on error.  They set errno according to their success:
  88
  89        <STRONG>E_OK</STRONG> The routine succeeded.
  90
  91        <STRONG>E_BAD_ARGUMENT</STRONG>
  92             Routine detected an incorrect or  out-of-range  argu-
  93             ment.
  94
  95        <STRONG>E_SYSTEM_ERROR</STRONG>
  96             System error occurred, e.g., malloc failure.
  97
  98        The function <STRONG>free_field</STRONG> returns one of the following:
  99
 100        <STRONG>E_OK</STRONG> The routine succeeded.
 101
 102        <STRONG>E_BAD_ARGUMENT</STRONG>
 103             Routine  detected  an incorrect or out-of-range argu-
 104             ment.
 105
 106        <STRONG>E_CONNECTED</STRONG>
 107             field is connected.
 108
 109
 110 </PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
 111        <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="form.3x.html">form(3x)</A></STRONG>.
 112
 113
 114 </PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
 115        The header file <STRONG>&lt;form.h&gt;</STRONG> automatically includes the header
 116        file <STRONG>&lt;curses.h&gt;</STRONG>.
 117
 118
 119 </PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
 120        These  routines  emulate the System V forms library.  They
 121        were not supported on Version 7 or BSD versions.
 122
 123        It may be unwise to count on the set of attributes  copied
 124        by  <STRONG>dup_field</STRONG>  being  portable; the System V forms library
 125        documents are not very explicit about what gets copied and
 126        what does not.
 127
 128
 129 </PRE><H2><a name="h2-AUTHORS">AUTHORS</a></H2><PRE>
 130        Juergen  Pfeifer.   Manual  pages  and  adaptation for new
 131        curses by Eric S. Raymond.
 132
 133
 134
 135                                                      <STRONG><A HREF="form_field_new.3x.html">form_field_new(3x)</A></STRONG>
 136 </PRE>
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 138 <ul>
 139 <li><a href="#h2-NAME">NAME</a></li>
 140 <li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
 141 <li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
 142 <li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
 143 <li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
 144 <li><a href="#h2-NOTES">NOTES</a></li>
 145 <li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
 146 <li><a href="#h2-AUTHORS">AUTHORS</a></li>
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