diff --git a/minisqlquery-master/src/MiniSqlQuery.Core/IMostRecentFilesService.cs b/minisqlquery-master/src/MiniSqlQuery.Core/IMostRecentFilesService.cs
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+++ b/minisqlquery-master/src/MiniSqlQuery.Core/IMostRecentFilesService.cs
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+#region License
+
+// Copyright 2005-2019 Paul Kohler (https://github.com/paulkohler/minisqlquery). All rights reserved.
+// This source code is made available under the terms of the GNU Lesser General Public License v3.0
+// https://github.com/paulkohler/minisqlquery/blob/master/LICENSE
+
+#endregion
+
+using System;
+using System.Collections.Generic;
+
+namespace MiniSqlQuery.Core
+{
+ /// <summary>
+ /// Tracks a list of filenames with promotion etc.
+ /// </summary>
+ public interface IMostRecentFilesService
+ {
+ /// <summary>
+ /// Occurs when a change to the most recent files list is made.
+ /// </summary>
+ event EventHandler<MostRecentFilesChangedEventArgs> MostRecentFilesChanged;
+
+ /// <summary>
+ /// Gets the filenames on the MRU list.
+ /// </summary>
+ /// <value>The filenames.</value>
+ IList<string> Filenames { get; }
+
+ /// <summary>
+ /// Gets the maximum number of MRU commands.
+ /// </summary>
+ /// <value>The maximum number of MRU commands.</value>
+ int MaxCommands { get; }
+
+ /// <summary>
+ /// Registers the specified <paramref name="filename"/>.
+ /// </summary>
+ /// <param name="filename">The <paramref name="filename"/> to register.</param>
+ void Register(string filename);
+
+ /// <summary>
+ /// Removes the specified <paramref name="filename"/> from the list.
+ /// </summary>
+ /// <param name="filename">The <paramref name="filename"/> to remove.</param>
+ void Remove(string filename);
+ }
+}
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