ncurses-5.2/doc/html/man/menu_userptr.3x.html


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<PRE>
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</PRE>
<H2>NAME</H2><PRE>
       <B>menu_userptr</B> - associate application data with a menu item


</PRE>
<H2>SYNOPSIS</H2><PRE>
       <B>#include</B> <B>&lt;menu.h&gt;</B>
       int set_menu_userptr(MENU *menu, void *userptr);
       void *menu_userptr(const MENU *menu);


</PRE>
<H2>DESCRIPTION</H2><PRE>
       Every menu and 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
       the menu user pointer field.


</PRE>
<H2>RETURN VALUE</H2><PRE>
       Except  for  <B>menu_userptr</B>  (which  returns <B>NULL</B> on error),
       each function returns one of the following:

       <B>E_OK</B> The routine succeeded.

       <B>E_SYSTEM_ERROR</B>
            System error occurred (see <B>errno</B>).


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


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


</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 should be a void pointer.  We 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.


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