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diff --git a/src/engine/events/RequestPortValueEvent.hpp b/src/engine/events/RequestPortValueEvent.hpp
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+++ b/src/engine/events/RequestPortValueEvent.hpp
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+/* This file is part of Ingen.
+ * Copyright (C) 2007 Dave Robillard <http://drobilla.net>
+ * 
+ * Ingen is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) any later
+ * version.
+ * 
+ * Ingen 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 details.
+ * 
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef REQUESTPORTVALUEEVENT_H
+#define REQUESTPORTVALUEEVENT_H
+
+#include <string>
+#include "QueuedEvent.hpp"
+#include "types.hpp"
+
+using std::string;
+
+namespace Ingen {
+	
+class PortImpl;
+namespace Shared { class ClientInterface; }
+using Shared::ClientInterface;
+
+
+/** A request from a client to send the value of a port.
+ *
+ * \ingroup engine
+ */
+class RequestPortValueEvent : public QueuedEvent
+{
+public:
+	RequestPortValueEvent(Engine& engine, SharedPtr<Responder> responder, SampleCount timestamp, const string& port_path);
+
+	void pre_process();
+	void execute(ProcessContext& context);
+	void post_process();
+
+private:
+	const string _port_path;
+	PortImpl*    _port;
+	Sample       _value;
+};
+
+
+} // namespace Ingen
+
+#endif // REQUESTPORTVALUEEVENT_H