os/boardsupport/emulator/emulatorbsp/inc/displayhandler.h
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution.
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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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