diff -r 000000000000 -r 08ec8eefde2f featuremgmt/featuremgr/src/clientdll/featureclient.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/featuremgmt/featuremgr/src/clientdll/featureclient.h	Fri Jan 22 11:06:30 2010 +0200
@@ -0,0 +1,177 @@
+/*
+* Copyright (c) 2007-2009 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 FEATURECLIENT_H
+#define FEATURECLIENT_H
+
+//  INCLUDES
+#include <e32base.h>
+#include <featmgr/featurecmn.h>
+
+// CLASS DECLARATION
+
+/**
+* Feature manager client interface.
+*
+*/
+class MFeatureClient
+    {
+    public: // From MFeatureClient
+
+        /**
+        * Checks if specified feature is supported and returns 
+        * its flags and data if requested.
+        * @param aFeature feature entry
+        * @return Positive (1) if the feature is supported,
+        *         Zero if feature is not supported.
+        *         KErrNotFound if feature not found.
+        *         Otherwise one of the Symbian error codes. 
+        */
+        virtual TInt FeatureSupported( TFeatureEntry& aFeature ) const = 0;
+
+        /**
+        * Fills feature status array according to status/data in server 
+        * 
+        * @param aFeatures feature entry array
+        * @return KErrNone if no error fetching feature statuses.
+        *         Otherwise one of the Symbian OS error codes.
+        */
+        virtual TInt FeaturesSupported( RFeatureArray& aFeatures ) = 0;
+
+   		/**
+        * Enables a certain feature.
+        *
+        * @param aFeature Feature ID.
+        * @return   KErrNone if the feature was succesfully enabled.
+        *           KErrAccessDenied if the feature is not modifiable.
+        *           KErrPermissionDenied if a capability check fails.
+        *           Otherwise one of the Symbian error codes. 
+        */
+        virtual TInt EnableFeature( TUid aFeature ) const = 0;
+
+       /**
+        * Disable a certain feature.
+        *
+        * @param aFeature Feature ID.
+        * @return   KErrNone if the feature was succesfully disabled.
+        *           KErrAccessDenied if the feature is not modifiable.
+        *           KErrPermissionDenied if a capability check fails.
+        *           Otherwise one of the Symbian error codes. 
+        */
+        virtual TInt DisableFeature( TUid aFeature ) const = 0;
+
+   		/**
+        * Enables or disables a certain feature and sets feature data.
+        *
+        * @param aFeature Feature ID.
+        * @param aEnabled Feature enable or disable.
+        * @param aData Feature data.
+        * @return   KErrNone if the feature was succesfully enabled.
+        *           KErrAccessDenied if the feature is not modifiable.
+        *           KErrPermissionDenied if a capability check fails.
+        *           Otherwise one of the Symbian error codes. 
+        */
+        virtual TInt SetFeature( TUid aFeature, TBool aEnabled, TInt aData ) const = 0;
+
+   		/**
+        * Sets certain feature's data.
+        *
+        * @param aFeature Feature ID.
+        * @param aData Feature data.
+        * @return   KErrNone if feature data was succesfully set.
+        *           KErrAccessDenied if the feature is not modifiable.
+        *           KErrPermissionDenied if a capability check fails.
+        *           Otherwise one of the Symbian error codes. 
+        */
+        virtual TInt SetFeature( TUid aFeature, TInt aData ) const = 0;
+
+   		/**
+        * Add a new feature.
+        *
+        * @param aFeature Feature entry.
+        * @return   KErrNone if the feature was succesfully added.
+        *           KErrAccessDenied if the feature is not modifiable.
+        *           KErrPermissionDenied if a capability check fails.
+        *           KErrAlreadyExists if feature already exists.
+        *           Otherwise one of the Symbian error codes. 
+        */
+        virtual TInt AddFeature( TFeatureEntry aEntry ) const = 0;
+
+   		/**
+        * Delete a feature.
+        *
+        * @param aFeature Feature ID.
+        * @return   KErrNone if the feature was successfully deleted.
+        *           KErrAccessDenied if the feature is not added using AddFeature() method.
+        *           KErrPermissionDenied if a capability check fails.
+        *           KErrNotFound if the feature not found.
+        *           Otherwise one of the Symbian error codes. 
+        */
+        virtual TInt DeleteFeature( TUid aFeature ) const = 0;
+
+        /**
+        * Lists all supported features.
+        *
+        * @param aSupportedFeatures A reference to a client owned RFeatureUidArray 
+        *           array which will be filled with the IDs of supported features. 
+        * @return  - One of the Symbian error codes.
+        */
+        virtual void ListSupportedFeaturesL( RFeatureUidArray& aSupportedFeatures ) = 0;
+
+        /**
+        * Requests notification for subset of features changes.
+        *
+        * @param aFeatures Features, from which client requests notification. 
+        * @param aFeatUid Feature id, which will be set by server on completion. 
+        * @param aStatus Client request to be signaled. 
+        * @return  - One of the Symbian error codes.
+        */
+        virtual TInt RequestNotification( RFeatureUidArray& aFeatures, TUid& aFeatUid, 
+            TRequestStatus& aStatus ) = 0;
+
+        /**
+         * Re-requests notification of a feature change.
+         * 
+         * @param aFeatUid UId of the feature to be re-requested.
+         * @param aStatus Client request to be signalled asynchronously.
+         * @return One of the Symbian OS system-wide error codes.
+         */
+        virtual TInt ReRequestNotification( TUid& aFeatUid, TRequestStatus& aStatus ) = 0;
+        
+        /**
+        * Cancel notification request for single feature's changes.
+        *
+        * @param aFeature Feature, for which client notification cancellation.
+        * @return - One of the Symbian error codes.
+        */
+        virtual TInt RequestNotifyCancel( TUid aFeature ) const = 0;
+
+        /**
+        * Cancel notification request for all features changes.
+        *
+        * @return  - One of the Symbian error codes.
+        */
+        virtual TInt RequestNotifyCancelAll( ) const = 0;
+
+    };
+
+#endif      // FEATURECLIENT_H
+            
+// End of File