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diff --git a/engines/scumm/imuse/imuse.h b/engines/scumm/imuse/imuse.h
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+++ b/engines/scumm/imuse/imuse.h
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+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2001  Ludvig Strigeus
+ * Copyright (C) 2001-2006 The ScummVM project
+ *
+ * This program 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.
+
+ * This program 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#ifndef IMUSE_H
+#define IMUSE_H
+
+#include "common/scummsys.h"
+#include "common/mutex.h"
+#include "scumm/music.h"
+
+class MidiDriver;
+class OSystem;
+
+namespace Scumm {
+
+class IMuseInternal;
+class ScummEngine;
+class Serializer;
+
+class IMuse : public MusicEngine {
+private:
+	OSystem *_system;
+	IMuseInternal *_target;
+	mutable Common::MutexRef _mutex;
+
+	IMuse(OSystem *system, IMuseInternal *target);
+	void in() const;
+	void out() const;
+
+public:
+	~IMuse();
+
+	enum {
+		PROP_TEMPO_BASE,
+		PROP_NATIVE_MT32,
+		PROP_GS,
+		PROP_LIMIT_PLAYERS,
+		PROP_RECYCLE_PLAYERS,
+		PROP_DIRECT_PASSTHROUGH
+	};
+
+	void on_timer(MidiDriver *midi);
+	void pause(bool paused);
+	int save_or_load(Serializer *ser, ScummEngine *scumm);
+	void setMusicVolume(int vol);
+	void startSound(int sound);
+	void stopSound(int sound);
+	void stopAllSounds();
+	int getSoundStatus(int sound) const;
+	bool get_sound_active(int sound) const;
+	int getMusicTimer() const;
+	int32 doCommand(int a, int b, int c, int d, int e, int f, int g, int h);
+	int32 doCommand(int numargs, int args[]);
+	int clear_queue();
+	void setBase(byte **base);
+	uint32 property(int prop, uint32 value);
+	void terminate();
+
+	// Factory methods
+	static IMuse *create(OSystem *syst, MidiDriver *nativeMidiDriver, MidiDriver *adlibMidiDriver);
+};
+
+} // End of namespace Scumm
+
+#endif