ncurses-5.7/doc/html/man/mitem_userptr.3x.html

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<H1>mitem_userptr 3x</H1>
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<STRONG><A HREF="mitem_userptr.3x.html">mitem_userptr(3x)</A></STRONG>                                     <STRONG><A HREF="mitem_userptr.3x.html">mitem_userptr(3x)</A></STRONG>




</PRE>
<H2>NAME</H2><PRE>
       <STRONG>mitem_userptr</STRONG>  -  associate  application  data with a menu
       item


</PRE>
<H2>SYNOPSIS</H2><PRE>
       <STRONG>#include</STRONG> <STRONG>&lt;menu.h&gt;</STRONG>
       int set_item_userptr(ITEM *item, void *userptr);
       void *item_userptr(const ITEM *item);


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


</PRE>
<H2>RETURN VALUE</H2><PRE>
       The  function  <STRONG>item_userptr</STRONG>  returns  a  pointer (possibly
       <STRONG>NULL</STRONG>).  It does not set errno.

       The <STRONG>set_item_userptr</STRONG> always 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="menu.3x.html">menu(3x)</A></STRONG>.


</PRE>
<H2>NOTES</H2><PRE>
       The header file <STRONG>&lt;menu.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 menu 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="mitem_userptr.3x.html">mitem_userptr(3x)</A></STRONG>
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