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<a href="../c3ref/intro.html"><h2>SQLite C Interface</h2></a>
<h2>Database File Corresponding To A Journal</h2>
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<blockquote><pre>
sqlite3_file *sqlite3_database_file_object(const char*);
</pre></blockquote>
<p>
If X is the name of a rollback or WAL-mode journal file that is
passed into the xOpen method of <a href="../c3ref/vfs.html">sqlite3_vfs</a>, then
sqlite3_database_file_object(X) returns a pointer to the <a href="../c3ref/file.html">sqlite3_file</a>
object that represents the main database file.</p>
<p>This routine is intended for use in custom <a href="../vfs.html">VFS</a> implementations
only. It is not a general-purpose interface.
The argument sqlite3_file_object(X) must be a filename pointer that
has been passed into <a href="../c3ref/vfs.html">sqlite3_vfs</a>.xOpen method where the
flags parameter to xOpen contains one of the bits
<a href="../c3ref/c_open_autoproxy.html">SQLITE_OPEN_MAIN_JOURNAL</a> or <a href="../c3ref/c_open_autoproxy.html">SQLITE_OPEN_WAL</a>. Any other use
of this routine results in undefined and probably undesirable
behavior.
</p><p>See also lists of
<a href="../c3ref/objlist.html">Objects</a>,
<a href="../c3ref/constlist.html">Constants</a>, and
<a href="../c3ref/funclist.html">Functions</a>.</p>
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