diff -r ccd8e69b5392 -r 496ad160a278 mmsharing/mmshengine/inc/musengdisplayhandler.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmsharing/mmshengine/inc/musengdisplayhandler.h	Fri Jun 11 13:36:18 2010 +0300
@@ -0,0 +1,109 @@
+/*
+* Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+*
+*/
+
+
+#ifndef MUSHENGDISPLAYHANDLER_H
+#define MUSHENGDISPLAYHANDLER_H
+
+
+#include <e32std.h>
+
+// CLASS DECLARATION
+
+/**
+* An Interface for display services
+*
+* @lib museng.lib
+* @since S60 v3.2
+*/
+class MMusEngDisplayHandler
+    {
+
+    public:
+        
+        /*
+        * Defines possible rotations 
+        */
+        enum TDisplayOrientation
+            {
+            EPortrait, // Normal
+            ELandscape // 90 degree's clockwise rotation
+            };
+
+        /**
+        * Returns currently assigned drawing area
+        *
+        * @return TRect This session drawing area rectangle
+        */
+        virtual TRect Rect() const = 0;
+
+        /**
+        * Sets new drawing area
+        *
+        * @param TRect This session new drawing area rectangle
+        */
+        virtual void SetRectL( const TRect& aRect ) = 0;
+        
+        /**
+        * Sets secondary rect (e.g. viewfinder in twoway session)
+        * @param TRect This session new secondary drawing area rectangle
+        */
+        virtual void SetSecondaryRectL( const TRect& aSecondaryRect ) = 0;
+        
+        /**
+        * Gets secondary rect.
+        * @return TRect This session secondary drawing area rectangle
+        */
+        virtual TRect SecondaryRect() const = 0;
+        
+        /**
+        * Enables or disables display. Call to this function is considered
+        * as a permission or denial to draw to the display.
+        */
+        virtual void EnableDisplayL( TBool aEnable ) = 0;
+        
+        /**
+        * Check whether display is enabled 
+        */
+        virtual TBool IsDisplayEnabled() = 0;
+        
+        /**
+        * Returns current display orientation.
+        *
+        * @pre Session is ongoing
+        * @return Current display orientation 
+        * @leave KErrNotReady if precondition is not fullfilled
+        */
+        virtual TDisplayOrientation OrientationL() = 0;
+        
+        /**
+        * Sets display orientation.
+        *
+        * @pre Session is ongoing
+        * @return Sets display orientation 
+        * @leave KErrNotReady if precondition is not fullfilled
+        */
+        virtual void SetOrientationL( TDisplayOrientation aOrientation ) = 0;
+        
+        /**
+        * Check if display is actively displaying content
+        * @return ETrue if is displaying content, otherwise EFalse
+        */
+        virtual TBool IsDisplayActive() = 0;
+    };
+
+#endif