1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/ossrv/lowlevellibsandfws/apputils/inc/BACNTF.H	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,65 @@
     1.4 +// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +//
    1.18 +
    1.19 +// Started by BLB, October 1996
    1.20 +#if !defined(__BACNTF_H__)
    1.21 +#define __BACNTF_H__
    1.22 +
    1.23 +#include <e32base.h>
    1.24 +
    1.25 +
    1.26 +class CEnvironmentChangeNotifier : public CActive
    1.27 +/** Environment change notifier. This is an active object and can be used to handle 
    1.28 +environment change events. 
    1.29 +@publishedAll
    1.30 +@released
    1.31 +*/
    1.32 +	{
    1.33 +public:
    1.34 +	IMPORT_C static CEnvironmentChangeNotifier* NewL(TInt aPriority,const TCallBack& aCallBack);
    1.35 +	IMPORT_C ~CEnvironmentChangeNotifier();
    1.36 +	IMPORT_C void Start();
    1.37 +	IMPORT_C TInt Set(const TCallBack& aCallBack);
    1.38 +	inline TInt Change() const;
    1.39 +private:
    1.40 +	inline CEnvironmentChangeNotifier(TInt aPriority);
    1.41 +	void RunL();
    1.42 +	void DoCancel();
    1.43 +private:
    1.44 +	TInt iChange;
    1.45 +	TCallBack iCallBack;
    1.46 +	RChangeNotifier iChangeNotifier;
    1.47 +	};
    1.48 +
    1.49 +
    1.50 +
    1.51 +inline TInt CEnvironmentChangeNotifier::Change() const
    1.52 +	/** Returns the last set of change events.
    1.53 +	
    1.54 +	If the last outstanding request completed normally, the function returns a 
    1.55 +	bit pattern where each bit value corresponds to one of the enumerators defined 
    1.56 +	by TChanges. A set bit indicates that the corresponding change event occurred.
    1.57 +	
    1.58 +	For example, if the bit value TChanges::EChangesMidnightCrossover is set, 
    1.59 +	then the system time has passed midnight.
    1.60 +	
    1.61 +	@return A set of bits consisting of one or more of the values defined by TChanges, 
    1.62 +	or KErrCancel if the last outstanding request was cancelled. 
    1.63 +	@see TChanges */
    1.64 +	{return iChange;}
    1.65 +
    1.66 +#endif
    1.67 +
    1.68 +