mguardkeycapture.h,v

symbian s60手机上的短信拦截源代码。

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	arelease:1.1.1.1
	avendor:1.1.1;
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comment	@ * @;


1.3
date	2007.08.22.11.15.42;	author administrator;	state Exp;
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filename	@MGuardKeyCapture.h@;

1.2
date	2007.07.30.13.21.33;	author administrator;	state Exp;
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permissions	644;
commitid	95046ade5dc0ebf;
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filename	@MGuardKeyCapture.h@;

1.1
date	2007.07.24.10.59.30;	author administrator;	state Exp;
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	1.1.1.1;
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1.1.1.1
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desc
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1.3
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@capture left arrow key only
@
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@/*
* ============================================================================
*  Name     :  MGuardKeyCapture.h
*  Part of  :  MGuard
*  Created  :  July 21 2007 by xueyw
*  Description:
*  Copyright: 
* ============================================================================
*/


#ifndef __MGUARDKEYCAPTURE_H__
#define __MGUARDKEYCAPTURE_H__


//  Include Files
#include <e32base.h>
#include <w32std.h>  // RWsSession

// Forward declarations
class RWindowGroup;
class CApaWindowGroupName;

class CGuardKeyCapturer : public CActive 
{
public:
	// New functions

	/** 
	* Registers itself for the key press events
	* @@leave Symbian standard leave codes
	*/
	void StartCapturingL();
	void StopCapturingL();
	void ResumeCapturingL();
	~CGuardKeyCapturer();

public:
	CGuardKeyCapturer();
	
public:
	// From CActive

	/**
	* Is called by active scheduler when key press happens
	*/
	void RunL();
	
public:
	TBool	IsCaptureStarted()
	{
		return iCaptureStarted;
	}
	
		TBool	IsCatpurePending()
	{
		return iCapturePending;
	}
	
	enum
	{
		EMaxKeyCount = 160
	};
protected:
	/**
	* Is called when event listening should be stopped
	*/
	virtual void DoCancel();
	
private:
	// Data

	// Session to the window server
	RWsSession 				iWsSession;

	// Window group created to listed to the events
	RWindowGroup* 			iWindowGroup;

	// Is used to hide window from the task switcher
	CApaWindowGroupName* 	iWindowGroupName;

	// Handle to the capturing request
	TInt32 					iCaptureHandle[EMaxKeyCount];
	TInt					iCaptureHandleCount;

	// Handle to the second capturing request
	TInt32 					iLongCaptureHandle;

	// Number of keypresses already captured
	TInt 					iCaptureCounter;
	TBool					iCaptureStarted;
	TBool					iCapturePending;
};

#endif  // __MGUARDKEYCAPTURE_H__

// End of file
@


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@singleton
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@a38 6
	static CGuardKeyCapturer& GetInstance() 
	{
		return iKeyCapture;
	}
	
private:
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	TBool	IsCatpureStarted()
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	static	CGuardKeyCapturer iKeyCapture;
@


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@Initial revision
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