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  * @Id: form_userptr.3x,v 1.11 2006/11/04 18:43:24 tom Exp @
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<H1>form_userptr 3x</H1>
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<!-- Manpage converted by man2html 3.0.1 -->
<STRONG><A HREF="form_userptr.3x.html">form_userptr(3x)</A></STRONG>                                       <STRONG><A HREF="form_userptr.3x.html">form_userptr(3x)</A></STRONG>


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<H2>NAME</H2><PRE>
       <STRONG>form_userptr</STRONG> - associate application data with a form item


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<H2>SYNOPSIS</H2><PRE>
       <STRONG>#include</STRONG> <STRONG>&lt;form.h&gt;</STRONG>
       int set_form_userptr(FORM *form, void *userptr);
       void* form_userptr(const FORM *form);


</PRE>
<H2>DESCRIPTION</H2><PRE>
       Every form and every form item 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
       the form user pointer field.


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

       The function <STRONG>set_form_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>.


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<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_userptr.3x.html">form_userptr(3x)</A></STRONG>
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