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31   * @Id: form_field_info.3x,v 1.18 2020/10/17 23:35:05 tom Exp @
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43 <H1 class="no-header">form_field_info 3x</H1>
44 <PRE>
45 <STRONG><A HREF="form_field_info.3x.html">form_field_info(3x)</A></STRONG>                                        <STRONG><A HREF="form_field_info.3x.html">form_field_info(3x)</A></STRONG>
46
47
48
49
50 </PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
51        <STRONG>dynamic_field_info</STRONG>, <STRONG>field_info</STRONG> - retrieve field characteristics
52
53
54 </PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
55        <STRONG>#include</STRONG> <STRONG>&lt;form.h&gt;</STRONG>
56
57        <STRONG>int</STRONG> <STRONG>field_info(const</STRONG> <STRONG>FIELD</STRONG> <STRONG>*</STRONG><EM>field</EM><STRONG>,</STRONG>
58                       <STRONG>int</STRONG> <STRONG>*</STRONG><EM>rows</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <STRONG>*</STRONG><EM>cols</EM><STRONG>,</STRONG>
59                       <STRONG>int</STRONG> <STRONG>*</STRONG><EM>frow</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <STRONG>*</STRONG><EM>fcol</EM><STRONG>,</STRONG>
60                       <STRONG>int</STRONG> <STRONG>*</STRONG><EM>nrow</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <STRONG>*</STRONG><EM>nbuf</EM><STRONG>);</STRONG>
61
62        <STRONG>int</STRONG> <STRONG>dynamic_field_info(const</STRONG> <STRONG>FIELD</STRONG> <STRONG>*</STRONG><EM>field</EM><STRONG>,</STRONG>
63                               <STRONG>int</STRONG> <STRONG>*</STRONG><EM>rows</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <STRONG>*</STRONG><EM>cols</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <STRONG>*</STRONG><EM>max</EM><STRONG>);</STRONG>
64
65
66 </PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
67        The  function  <STRONG>field_info</STRONG> returns the sizes and other attributes passed
68        in to the field at its creation  time.   The  attributes  are:  height,
69        width,  row  of  upper-left corner, column of upper-left corner, number
70        off-screen rows, and number of working buffers.
71
72        The function <STRONG>dynamic_field_info</STRONG> returns the actual size of  the  field,
73        and  its  maximum  possible  size.  If the field has no size limit, the
74        location addressed by the third argument will be set to 0.  A field can
75        be made dynamic by turning off the <STRONG>O_STATIC</STRONG> option with <STRONG>field_opts_off</STRONG>.
76
77
78 </PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
79        These routines return one of the following:
80
81        <STRONG>E_OK</STRONG> The routine succeeded.
82
83        <STRONG>E_SYSTEM_ERROR</STRONG>
84             System error occurred (see <STRONG>errno(3)</STRONG>).
85
86        <STRONG>E_BAD_ARGUMENT</STRONG>
87             Routine detected an incorrect or out-of-range argument.
88
89
90 </PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
91        <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>  and  related  pages  whose names begin "form_" for detailed
92        descriptions of the entry points.
93
94
95 </PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
96        The  header  file  <STRONG>&lt;form.h&gt;</STRONG>  automatically  includes  the  header  file
97        <STRONG>&lt;curses.h&gt;</STRONG>.
98
99
100 </PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
101        These  routines emulate the System V forms library.  They were not sup-
102        ported on Version 7 or BSD versions.
103
104        A null (zero pointer) is accepted for any  of  the  return  values,  to
105        ignore  that  value.  Not all implementations allow this, e.g., Solaris
106        2.7 does not.
107
108
109 </PRE><H2><a name="h2-AUTHORS">AUTHORS</a></H2><PRE>
110        Juergen Pfeifer.  Manual pages and adaptation for new curses by Eric S.
111        Raymond.
112
113
114
115                                                            <STRONG><A HREF="form_field_info.3x.html">form_field_info(3x)</A></STRONG>
116 </PRE>
117 <div class="nav">
118 <ul>
119 <li><a href="#h2-NAME">NAME</a></li>
120 <li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
121 <li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
122 <li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
123 <li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
124 <li><a href="#h2-NOTES">NOTES</a></li>
125 <li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
126 <li><a href="#h2-AUTHORS">AUTHORS</a></li>
127 </ul>
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