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  * @Id: form_field_userptr.3x,v 1.16 2020/10/24 09:06:33 tom Exp @
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<H1 class="no-header">form_field_userptr 3x</H1>
<PRE>
<STRONG><A HREF="form_field_userptr.3x.html">form_field_userptr(3x)</A></STRONG>                                  <STRONG><A HREF="form_field_userptr.3x.html">form_field_userptr(3x)</A></STRONG>


</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
       <STRONG>set_field_userptr</STRONG>,  <STRONG>field_userptr</STRONG>  -  associate application data with a
       form field


</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
       <STRONG>#include</STRONG> <STRONG>&lt;form.h&gt;</STRONG>

       <STRONG>int</STRONG> <STRONG>set_field_userptr(FIELD</STRONG> <STRONG>*</STRONG><EM>field</EM><STRONG>,</STRONG> <STRONG>void</STRONG> <STRONG>*</STRONG><EM>userptr</EM><STRONG>);</STRONG>
       <STRONG>void</STRONG> <STRONG>*field_userptr(const</STRONG> <STRONG>FIELD</STRONG> <STRONG>*</STRONG><EM>field</EM><STRONG>);</STRONG>


</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
       Every form field has a field that can  be  used  to  hold  application-
       specific  data  (that is, the form-driver code leaves it alone).  These
       functions get and set that field.


</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
       The function <STRONG>field_userptr</STRONG> returns a pointer (which may be  <STRONG>NULL</STRONG>).   It
       does not set <STRONG>errno</STRONG>.

       The function <STRONG>set_field_userptr</STRONG> returns <STRONG>E_OK</STRONG> (success).


</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
       <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="form.3x.html">form(3x)</A></STRONG>.


</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
       The  header  file  <STRONG>&lt;form.h&gt;</STRONG>  automatically  includes  the  header  file
       <STRONG>&lt;curses.h&gt;</STRONG>.


</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
       These routines emulate the System  V  forms  library.   They  were  not
       supported on Version 7 or BSD versions.

       The user pointer is a void pointer.  We chose not to leave it as a char
       pointer for SVr4 compatibility.


</PRE><H2><a name="h2-AUTHORS">AUTHORS</a></H2><PRE>
       Juergen Pfeifer.  Manual pages and adaptation for new curses by Eric S.
       Raymond.


                                                        <STRONG><A HREF="form_field_userptr.3x.html">form_field_userptr(3x)</A></STRONG>
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<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
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<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
<li><a href="#h2-NOTES">NOTES</a></li>
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