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* @Id: form_field_userptr.3x,v 1.11 2015/12/05 23:01:56 tom Exp @
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
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<HTML>
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<TITLE>form_field_userptr 3x</TITLE>
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<link rev=made href="mailto:bug-ncurses@gnu.org">
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<H1 class="no-header">form_field_userptr 3x</H1>
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<PRE>
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<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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</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
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<STRONG>set_field_userptr</STRONG>, <STRONG>field_userptr</STRONG> - associate application
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data with a form field
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</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
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<STRONG>#include</STRONG> <STRONG><form.h></STRONG>
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int set_field_userptr(FIELD *field, void*userptr);
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void *field_userptr(const FIELD *field);
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</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
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Every form field has a field that can be used to hold
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application-specific data (that is, the form-driver code
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leaves it alone). These functions get and set that field.
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</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
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The function <STRONG>field_userptr</STRONG> returns a pointer (which may be
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<STRONG>NULL</STRONG>). It does not set errno.
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The function <STRONG>set_field_userptr</STRONG> returns <STRONG>E_OK</STRONG> (success).
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</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
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<STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="form.3x.html">form(3x)</A></STRONG>.
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</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
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The header file <STRONG><form.h></STRONG> automatically includes the header
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file <STRONG><curses.h></STRONG>.
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</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
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These routines emulate the System V forms library. They
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were not supported on Version 7 or BSD versions.
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The user pointer is a void pointer. We chose not to leave
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it as a char pointer for SVr4 compatibility.
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</PRE><H2><a name="h2-AUTHORS">AUTHORS</a></H2><PRE>
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Juergen Pfeifer. Manual pages and adaptation for new
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curses by Eric S. Raymond.
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<STRONG><A HREF="form_field_userptr.3x.html">form_field_userptr(3x)</A></STRONG>
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</PRE>
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<div class="nav">
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<li><a href="#h2-NAME">NAME</a></li>
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<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
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<li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
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<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
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<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
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<li><a href="#h2-NOTES">NOTES</a></li>
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<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
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