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<![ %CDE.C.CDE; [<refentry id="CDE.INFO.DtMmdbTocGetParentId">]]><refmeta><refentrytitle>
DtMmdbTocGetParentId</refentrytitle><manvolnum>library call</manvolnum></refmeta><refnamediv>
<refname><function>DtMmdbTocGetParentId</function></refname><refpurpose>obtains
the object identifier of the parent section</refpurpose></refnamediv><refsynopsisdiv>
<funcsynopsis>
<funcsynopsisinfo>#include &lt;DtMmdb.h></funcsynopsisinfo>
<funcdef>DtMmdbHandle* <function>DtMmdbTocGetParentId</function></funcdef>
<paramdef>DtMmdbInfoRequest* <parameter>request</parameter></paramdef>
</funcsynopsis>
</refsynopsisdiv><refsect1>
<title>DESCRIPTION</title>
<para>The <function>DtMmdbTocGetParentId</function> function
returns the object identifier of the section that is parent to the
specified section. Use the <function>DtMmdbFreeHandle</function>
to release the identifier when it is no longer needed.
</para>
</refsect1><refsect1>
<title>ARGUMENTS</title>
<variablelist>
<varlistentry><term><symbol role="Variable">request</symbol></term>
<listitem>
<para>Specifies the bookcase in the bookcase descriptor field and
the section's Database Engine identifier, in the
<symbol role="Variable">primary_oid</symbol> field.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1><refsect1>
<title>RETURN VALUE</title>
<para>If <function>DtMmdbTocGetParentId</function> completes
successfully, it returns the object identifier of the parent section.
If it fails, it returns a NULL pointer.
</para>
</refsect1><refsect1>
<title>EXAMPLE</title>
<para>The following shows how a <function>DtMmdbTocGetParentId</function> call
might be coded.</para>
<informalexample>
<programlisting>DtMmdbInfoRequest request;
/* fill the request here */
DtMmdbHandle* parent = DtMmdbTocGetParentId(&amp;request);
if  (parent != DtMmdbGroundId) {
   if (parent == 0) {
       /* invalid request */
   } else {
     /* parent points at the parent section */
   }
} else { /* this section is the root section */
 }
</programlisting>
</informalexample>
</refsect1><refsect1>
<title>SEE ALSO</title>
<para>TO BE SUPPLIED
</para>
</refsect1></refentry>
