Files
cdesktop/cde/doc/C/guides/man/m3_Dt/MmdbSeGL.sgm

73 lines
2.8 KiB
Plaintext

<!-- $XConsortium: MmdbSeGL.sgm /main/5 1996/09/08 20:08:59 rws $ -->
<!-- (c) Copyright 1996 Digital Equipment Corporation. -->
<!-- (c) Copyright 1996 Hewlett-Packard Company. -->
<!-- (c) Copyright 1996 International Business Machines Corp. -->
<!-- (c) Copyright 1996 Sun Microsystems, Inc. -->
<!-- (c) Copyright 1996 Novell, Inc. -->
<!-- (c) Copyright 1996 FUJITSU LIMITED. -->
<!-- (c) Copyright 1996 Hitachi. -->
<![ %CDE.C.CDE; [<refentry id="CDE.INFO.DtMmdbSectionGetLoc">]]><refmeta><refentrytitle>
DtMmdbSectionGetLoc</refentrytitle><manvolnum>library call</manvolnum></refmeta><refnamediv>
<refname><function>DtMmdbSectionGetLoc</function></refname><refpurpose>obtains
a section's locator</refpurpose></refnamediv><refsynopsisdiv>
<funcsynopsis>
<funcsynopsisinfo>#include &lt;DtMmdb.h></funcsynopsisinfo>
<funcdef>const char* <function>DtMmdbSectionGetLoc</function></funcdef>
<paramdef>DtMmdbInfoRequest* <parameter>request</parameter></paramdef>
</funcsynopsis>
</refsynopsisdiv><refsect1>
<title>DESCRIPTION</title>
<para>The <function>DtMmdbSectionGetLoc</function> function
returns the logical identifier for the specified section. Do not use the
<function>free</function> function on the returned pointer. No table lookup is
involved.
</para>
<para>The space used by the returned locator pointer is likely to be
reused by the database engine when any of the API functions
are invoked again. You must make a copy of the content
if you want to retain it across multiple API calls.
This behavior holds true for all functions that return
a <literal>const char*</literal> pointer.
</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 (object) identifier in the
<symbol role="Variable">primary_oid</symbol> field.
The DtInfo Database Engine identifier is assigned to
the section when it is stored.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1><refsect1>
<title>RETURN VALUE</title>
<para>If <function>DtMmdbSectionGetLoc</function> completes
successfully, it returns a pointer to a NULL-terminated
locator string. If it fails, it returns a NULL pointer.
</para>
</refsect1><refsect1>
<title>EXAMPLE</title>
<para>The following shows how a <function>DtMmdbSectionGetLoc</function> call
might be coded.</para>
<informalexample>
<programlisting>const char* locator = 0;
DtMmdbInfoRequest request;
int bd = DtMmdbGetBookCase(myInfoLibPtr, "myBase");
if ( bd >= 0) {
request.bookcase_descriptor = bd;
request.sequence_num = 1;
request.primary_oid = DtMmdbBookGetTocObjectId(&amp;request);
locator = DtMmdbSectionGetLoc(&amp;request);
}
</programlisting>
</informalexample>
</refsect1><refsect1>
<title>SEE ALSO</title>
<para>TO BE SUPPLIED
</para>
</refsect1></refentry>