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// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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//
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/**
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@file
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@publishedPartner
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@prototype
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*/
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#ifndef __DISPLAYHANDLER_H__
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#define __DISPLAYHANDLER_H__
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/**
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Display request handler interface
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*/
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class MDisplayHandler
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{
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public:
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/**
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Process a request on this logical channel.
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@param aReqNo Request number:
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== KMaxTInt, a 'DoCancel' message
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>= 0, a 'DoControl' message with function number equal to aReqNo
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< 0, a 'DoRequest' message with function number equal to ~aReqNo
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@param a1 First argument. For DoRequest requests this is a pointer to
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the TRequestStatus.
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@param a2 Second argument. For DoRequest this is a pointer to the 2
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actual TAny* arguments.
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@return Result. Ignored by device driver framework for DoRequest requests.
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*/
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virtual TInt HandleRequest(TInt aReqNo, TAny* a1, TAny* a2) = 0;
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};
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#endif
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