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  * @Id: form_field_userptr.3x,v 1.8 2006/11/04 18:04:37 tom Exp @
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<H1>form_field_userptr 3x</H1>
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<!-- Manpage converted by man2html 3.0.1 -->
<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>


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<H2>NAME</H2><PRE>
       <STRONG>form_field_userptr</STRONG>  -  associate  application  data with a
       form field


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<H2>SYNOPSIS</H2><PRE>
       <STRONG>#include</STRONG> <STRONG>&lt;form.h&gt;</STRONG>
       int set_field_userptr(FIELD *field, void*userptr);
       void *field_userptr(const FIELD *field);


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

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


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


</PRE>
<H2>NOTES</H2><PRE>
       The header file <STRONG>&lt;form.h&gt;</STRONG> automatically includes the header
       file <STRONG>&lt;curses.h&gt;</STRONG>.


</PRE>
<H2>PORTABILITY</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>AUTHORS</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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