System.Data.SQLite

    /// <returns>
    /// A boolean indicating whether or not the SQLite core library has been
    /// initialized for the current process.
    /// </returns>
    internal static bool StaticIsInitialized()
    {
        //
        // NOTE: Save the state of the logging class and then restore it
        //       after we are done to avoid logging too many false errors.
        //
        bool savedEnabled = SQLiteLog.Enabled;
        SQLiteLog.Enabled = false;

        try
        {
            //
            // NOTE: This method [ab]uses the fact that SQLite will always
            //       return SQLITE_ERROR for any unknown configuration option
            //       *unless* the SQLite library has already been initialized.
            //       In that case it will always return SQLITE_MISUSE.
            //
            int rc = UnsafeNativeMethods.sqlite3_config(
                (int)SQLiteConfigOpsEnum.SQLITE_CONFIG_NONE, null, (IntPtr)0);

            return (rc == /* SQLITE_MISUSE */ 21);
        }
        finally
        {
            SQLiteLog.Enabled = savedEnabled;
        }
    }

    /// <summary>
    /// Helper function to retrieve a column of data from an active statement.
    /// </summary>
    /// <param name="stmt">The statement being step()'d through</param>
    /// <param name="index">The column index to retrieve</param>