diff -r e3cdd00b5ae3 -r 27fe719c32e6 camappengine/Engine/Inc/CaeCommon.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/camappengine/Engine/Inc/CaeCommon.h	Wed Sep 01 12:23:23 2010 +0100
@@ -0,0 +1,103 @@
+/*
+* Copyright (c) 2004 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:  Common definitions
+*
+*/
+
+
+
+#ifndef CAECOMMON_H
+#define CAECOMMON_H
+
+//  INCLUDES
+
+#include <e32std.h>
+
+// CONSTANTS
+
+enum TCaeExtensionInterfaceIndexes
+	{
+	KCaeExtProcessImageInterfaceIndex = 0,
+	KCaeExtSettingsInterfaceIndex = 1
+	};
+
+// Supported extension interfaces
+// The order of this array must match to TCaeExtensionInterfaceIndexes.
+const TUid KCaeSupportedExtensionInterfaceUids[] = 
+	{
+		{ KCaeExtProcessImageInterfaceUidValue },
+		{ KCaeExtSettingsInterfaceUidValue } ,
+		{ NULL } // End mark
+	};
+
+// Supported callback interfaces
+const TUid KCaeSupportedCallbackInterfaceUids[] = 
+	{
+		{ KCaeExtEngineInfoCallbackInterfaceUidValue },
+		{ NULL } // End mark
+	};
+
+// Extension list granularity
+const TInt TCaeExtensionInterfaceImplItemGranularity = 10;
+
+// CLASS DECLARATIONS
+
+/**
+* Struct for the extension interface implementation array item.
+*/
+
+struct TCaeExtensionInterfaceImplItem
+	{
+    // Priority of the specific implementation
+    TInt iInitialPriority;
+
+    // Uid of the specific implementation
+	TUid iImplUid;
+
+    // Pointer to the specific implementation
+	TAny* iImplPtr;
+
+    // Set to ETrue when image processing is enabled
+	TBool iIsActive;
+	};
+
+/**
+* Struct for the extension interface implementation array item.
+*/
+
+struct TCaeExtensionInterfaceImplListItem
+	{
+	// Uid of the interface 
+	TUid iInterfaceUid;
+
+	// List of implementations
+	RArray<TCaeExtensionInterfaceImplItem>* iImplementations;
+	};
+
+/**
+* Struct for the custom interface implementation array item.
+*/
+
+struct TCaeCustomInterfaceImplItem
+	{
+    // Uid of the custom interface that is implemented by the extension 
+	TUid iInterfaceUid;
+
+    // Pointer to the implementation
+	TAny* iImplPtr;
+	};
+
+
+
+#endif // CAECOMMON_H
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