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diff --git a/src/lib/arch/IArchConsole.h b/src/lib/arch/IArchConsole.h
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+++ b/src/lib/arch/IArchConsole.h
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+/*
+ * barrier -- mouse and keyboard sharing utility
+ * Copyright (C) 2012-2016 Symless Ltd.
+ * Copyright (C) 2002 Chris Schoeneman
+ * 
+ * This package is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * found in the file LICENSE that should have accompanied this file.
+ * 
+ * This package is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "common/IInterface.h"
+#include "base/ELevel.h"
+
+//! Interface for architecture dependent console output
+/*!
+This interface defines the console operations required by
+barrier.  Each architecture must implement this interface.
+*/
+class IArchConsole : public IInterface {
+public:
+    //! @name manipulators
+    //@{
+
+    //! Open the console
+    /*!
+    Opens the console for writing.  The console is opened automatically
+    on the first write so calling this method is optional.  Uses \c title
+    for the console's title if appropriate for the architecture.  Calling
+    this method on an already open console must have no effect.
+    */
+    virtual void        openConsole(const char* title) = 0;
+
+    //! Close the console
+    /*!
+    Close the console.  Calling this method on an already closed console
+    must have no effect.
+    */
+    virtual void        closeConsole() = 0;
+
+    //! Show the console
+    /*!
+    Causes the console to become visible.  This generally only makes sense
+    for a console in a graphical user interface.  Other implementations
+    will do nothing.  Iff \p showIfEmpty is \c false then the implementation
+    may optionally only show the console if it's not empty.
+    */
+    virtual void        showConsole(bool showIfEmpty) = 0;
+
+    //! Write to the console
+    /*!
+    Writes the given string to the console, opening it if necessary.
+    */
+    virtual void        writeConsole(ELevel, const char*) = 0;
+
+    //@}
+};