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/*
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* Copyright (c) 2010 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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#ifndef SGENGINE_H
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#define SGENGINE_H
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// INCLUDES
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#include <e32std.h>
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#include <e32base.h>
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#include <f32file.h>
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#include <w32std.h>
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#include <mdaaudiotoneplayer.h>
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#include <qsymbianevent.h>
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class CFrameImageData;
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class CDictionaryFileStore;
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class CImageEncoder;
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class EngineWrapper;
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// setting keys (do not change uids of existing keys to maintain compatibility to older versions!)
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const TUid KSGSettingCaptureMode = { 0x00 };
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const TUid KSGSettingSingleCaptureHotkey = { 0x01 };
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const TUid KSGSettingSingleCaptureImageFormat = { 0x02 };
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const TUid KSGSettingSingleCaptureMemoryInUseMultiDrive = { 0x04 };
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const TUid KSGSettingSingleCaptureFileName = { 0x05 };
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const TUid KSGSettingSequantialCaptureHotkey = { 0x06 };
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const TUid KSGSettingSequantialCaptureImageFormat = { 0x07 };
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const TUid KSGSettingSequantialCaptureDelay = { 0x08 };
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const TUid KSGSettingSequantialCaptureMemoryInUseMultiDrive = { 0x0A };
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const TUid KSGSettingSequantialCaptureFileName = { 0x0B };
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const TUid KSGSettingVideoCaptureHotkey = { 0x0C };
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const TUid KSGSettingVideoCaptureVideoFormat = { 0x0D };
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const TUid KSGSettingVideoCaptureMemoryInUseMultiDrive = { 0x0F };
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const TUid KSGSettingVideoCaptureFileName = { 0x10 };
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const TUid KUidScreenGrabber = { 0x101FB751 };
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#define TRANSPARENCY_INDEX 30
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#define TRANSPARENCY_ALTERNATIVE_INDEX 24
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enum TScreenGrabberSettingCaptureModes
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{
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ECaptureModeSingleCapture = 0,
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ECaptureModeSequantialCapture,
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ECaptureModeVideoCapture
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};
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enum TScreenGrabberSettingHotkeys
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{
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EHotkeySendKey = 0,
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EHotkeyPowerKey,
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EHotkeySideKey,
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EHotkeyCameraKey1
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};
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enum TScreenGrabberSettingImageFormats
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{
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EImageFormatPNG = 0,
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EImageFormatJPGHQ,
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EImageFormatJPGLQ,
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EImageFormatBMP,
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EImageFormatGIF,
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EImageFormatMBM
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};
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enum TScreenGrabberSettingVideoFormats
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{
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EVideoFormatAnimatedGIF = 0
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};
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enum TScreenGrabberSettingMultiDrive
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{
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EPhoneMemory = 0,
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EMemoryCard
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};
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class TGrabSettings
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{
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public:
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TInt iCaptureMode;
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TInt iSingleCaptureHotkey;
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TInt iSingleCaptureImageFormat;
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TInt iSingleCaptureMemoryInUseMultiDrive;
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TFileName iSingleCaptureFileName;
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TInt iSequantialCaptureHotkey;
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TInt iSequantialCaptureImageFormat;
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TInt iSequantialCaptureDelay;
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TInt iSequantialCaptureMemoryInUseMultiDrive;
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TFileName iSequantialCaptureFileName;
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TInt iVideoCaptureHotkey;
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TInt iVideoCaptureVideoFormat;
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TInt iVideoCaptureMemoryInUseMultiDrive;
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TFileName iVideoCaptureFileName;
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};
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class TVideoFrame
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{
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public:
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TUint iWidth;
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TUint iHeight;
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TUint iXPos;
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TUint iYPos;
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TUint iDelay; // 1000 = 1 sec
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TBool iEnableTransparency;
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TBool iFillsWholeScreen;
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TFileName iFileStorePath;
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};
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typedef CArrayFixSeg<TVideoFrame> CVideoFrameArray;
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/**
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* CEngine
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*
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*/
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class SGEngine : public CActive //, public MMdaAudioToneObserver
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{
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// active object states
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enum TState
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{
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EIdle = 0, // do nothing
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EEncodingImage, // ICL encoding of an image
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ESequenceDelay, // waiting till next capture
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ECancelCapturing, // asking to cancel capturing
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ENextVideoFrame, // get next frame for video
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ECancelVideoCapturing, // asking to cancel video capturing
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EQueryDelay // waiting till to remove query
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};
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public:
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// Constructors and destructor
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/**
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* Destructor.
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*/
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~SGEngine();
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/**
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* Two-phased constructor.
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*/
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static SGEngine* NewL(EngineWrapper *aEngineWrapper);
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/**
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* Two-phased constructor.
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*/
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static SGEngine* NewLC(EngineWrapper *aEngineWrapper);
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/**
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* returns current settings
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*/
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inline TGrabSettings GrabSettings(){ return iGrabSettings; };
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/**
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* saves settings to engine
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*/
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void SaveSettingsL(const TGrabSettings& aGrabSettings);
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/**
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* takes one screen shot
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*/
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bool TakeScreenShotAndSaveL();
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TBool DriveOK(TDriveNumber aNumber);
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TBool IsDriveMMC(TDriveNumber aDrive);
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#if defined(HB_QT_S60_EVENT_FILTER)
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TBool HandleCaptureCommandsL(const TWsEvent* aEvent);
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#else
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TBool HandleCaptureCommandsL(const QSymbianEvent *event);
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#endif
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void ActivateModelL();
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void DeActivateModelL();
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void ActivateCaptureKeysL(TBool aChangeKey=EFalse);
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void EnableRcpOfFoc(TBool aState);
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void LoadSettingsL();
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private:
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void CapturingFinishedL(TInt aErr);
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void RunL();
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void DoCancel();
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void SaveVideoL(TInt aErr);
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void CleanTemporaryFilesL();
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void LoadDFSValueL(CDictionaryFileStore* aDicFS, const TUid& aUid, TInt& aValue);
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void LoadDFSValueL(CDictionaryFileStore* aDicFS, const TUid& aUid, TDes& aValue);
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void SaveDFSValueL(CDictionaryFileStore* aDicFS, const TUid& aUid, const TInt& aValue);
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void SaveDFSValueL(CDictionaryFileStore* aDicFS, const TUid& aUid, const TDes& aValue);
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void CancelCapturing();
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void CaptureFrameForVideoL();
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/**
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* Constructor for performing 1st stage construction
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*/
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SGEngine();
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/**
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* EPOC default constructor for performing 2nd stage construction
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*/
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void ConstructL(EngineWrapper *aEngineWrapper);
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private:
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RFs iFileSession;
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CActiveScheduler* iActiveScheduler;
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CActiveSchedulerWait* iWait;
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TGrabSettings iGrabSettings; // a simple class to store the settings used in the screen capture
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RWindowGroup iRootWin; // application's window group
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TInt iCapturedKey; // a handle to the key which is captured
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TInt iCapturedKeyUnD; // a handle to the key which is captured, up and down
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TInt iCapturedKeyHash; // a handle to the hash key which is captured
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TInt iCapturedKeyHashUnD; // a handle to the hash key which is captured, up and down
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TBool iHashKeyCapturingActivated; // captures hash key is activated
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CFbsBitmap* iPreviouslyCapturedBitmap; // a previously captured bitmap
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TFileName iSaveFileName;
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CImageEncoder* iImageEncoder; // engine from ICL to do the image conversion// target filename of the taken screen shot
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CFrameImageData* iFrameImageData; // frame and image block data needed by ICL
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TState iState; // state of this active object
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TBool iHashKeyDown; // stores state if hash key is currently down
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TBool iCapturingInProgress; // boolean to check if capturing is in progress
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TBool iStopCapturing; // boolean to specify if to ask capturing
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TUint iNumberOfTakenShots; // a number of the taken screen shots in the sequantial mode
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RTimer iTimer; // a timer for async delays
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TUint iCurrentFrameNumber; // a number of taken frames in video mode
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TTime iPreviousFrameTaken; // time when the last frame was taken
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TSize iVideoDimensions; // dimension of the video
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TSize iPreviousFrameScreenDimension; // dimension of the screen in previous frame
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CVideoFrameArray* iVideoFrameArray; // the frames of the video
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EngineWrapper* iEngineWrapper; // Eninewrapper that is used for communicating between QT and Symbian
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};
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#endif // SGENGINE_H
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