cameratimer.h

来自「最新官方例子,图形,描述副,基本控件,通讯协议,等等,」· C头文件 代码 · 共 59 行

#ifndef __CAMERATIMER_H__
#define __CAMERATIMER_H__

// INCLUDES

// System Includes
#include <e32base.h>

// FORWARD DECLARATIONS
class MCameraTimerObserver;


// Constants
const TInt KDefaultDelay = 200000;
const TInt KFilmReelSpeed = 2 * KDefaultDelay; // record the film reel at slower speed than preview

// CLASS DECLARATION

/**
*
* @class	CCameraTimer CameraTimer.h 
* @brief	This is an active object derived from CTimer
*			that calls the observer function after a fixed
*			delay.
*
* Copyright (c) EMCC Software Ltd 2003
* @version	1.0
* 
*/

class CCameraTimer : public CTimer
  	{
public:// Constructors and destructor

	static CCameraTimer* NewL(MCameraTimerObserver& aTimerObserver);
	static CCameraTimer* NewLC(MCameraTimerObserver& aTimerObserver);
	~CCameraTimer();

private:// constructors
	CCameraTimer(MCameraTimerObserver& aTimerObserver);
	void ConstructL();

public: // new methods
	void StartTimer();
	void SetDelay(TInt aTimerInterval);

public: // from CTimer
	void DoCancel();
	void RunL();
	TInt RunError(TInt aError);

private: // data 
	TInt iTimerInterval;
	MCameraTimerObserver& iTimerObserver;
	};

#endif // __CAMERATIMER_H__