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WTIMER.HPP
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C/C++ Source or Header
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1996-10-18
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/* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Copyright (C) 1994, by WATCOM International Inc. All rights %
% reserved. No part of this software may be reproduced or %
% used in any form or by any means - graphic, electronic or %
% mechanical, including photocopying, recording, taping or %
% information storage and retrieval systems - except with the %
% written permission of WATCOM International Inc. %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
*/
/*************************************************************************
*
* WTimer -- Wrapper for the Windows 95 Timer control.
*
* Events:
*
* Timer --
*
*************************************************************************/
#ifndef _WTIMER_HPP_INCLUDED
#define _WTIMER_HPP_INCLUDED
#ifndef _WNO_PRAGMA_PUSH
#pragma pack(push,8);
#pragma enum int;
#endif
#ifndef _WWINDOW_HPP_INCLUDED
# include "wwindow.hpp"
#endif
#ifndef _WSEMAPHR_HPP_INCLUDED
# include "wsemaphr.hpp"
#endif
class WTimer;
struct WTimerEventData : public WEventData {
WDWord systemTime;
};
class WCMCLASS WTimer : public WEventGenerator {
WDeclareSubclass( WTimer, WEventGenerator );
public:
/**********************************************************
* Constructors and Destructors
*********************************************************/
WTimer();
~WTimer();
/**********************************************************
* Properties
*********************************************************/
// TickCount
//
// Returns the number of milliseconds since the system
// was started.
static WDWord GetTickCount();
/**********************************************************
* Methods
*********************************************************/
// Start
//
// Start the timer. The timer will tick with the given
// interval. If count is 0, the timer will tick continuously
// until stopped, otherwise it will only tick the given
// number of times.
WBool Start( WDWord interval, WInt tickCount=0 );
// Stop
//
// Stop a currently running timer.
WBool Stop();
// Tick
//
// Call the timer's event handler as if a tick had occurred.
// If 0 is passed for the tickTime, the current time is
// used.
WBool Tick( WDWord tickTime=0 );
/**********************************************************
* Data members
*********************************************************/
private:
WInt _id;
WInt _count;
WCallbackProc _procInst;
};
#ifndef _WNO_PRAGMA_PUSH
#pragma enum pop;
#pragma pack(pop);
#endif
#endif // _WTIMER_HPP_INCLUDED