101 lines
3.1 KiB
C++
101 lines
3.1 KiB
C++
#ifndef _UEVTTMR_H
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#define _UEVTTMR_H
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#include "dpa.h"
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typedef struct
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{
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HWND hWnd;
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UINT uCallbackMessage;
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ULONG uUserEventTimerID;
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UINT uTimerElapse;
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UINT uIntervalCountdown;
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IUserEventTimerCallback * pUserEventTimerCallback;
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BOOL bFirstTime;
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}
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USEREVENTINFO;
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#define MIN_TIMER_THRESHOLD 0.1
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#define MAX_TIMER_THRESHOLD 0.01
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class CUserEventTimer : public IUserEventTimer
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{
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public:
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// *** IUnknown ***
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STDMETHODIMP QueryInterface(REFIID riid, void ** ppvObj);
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STDMETHODIMP_(ULONG) AddRef();
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STDMETHODIMP_(ULONG) Release();
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// *** IUserEventTimer ***
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STDMETHODIMP SetUserEventTimer( HWND hWnd,
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UINT uCallbackMessage,
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UINT uTimerElapse,
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IUserEventTimerCallback * pUserEventTimerCallback,
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ULONG * puUserEventTimerID);
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STDMETHODIMP KillUserEventTimer(HWND hWnd, ULONG uUserEventTimerID);
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STDMETHODIMP GetUserEventTimerElapsed(HWND hWnd, ULONG uUserEventTimerID, UINT * puTimerElapsed);
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STDMETHODIMP InitTimerTickInterval(UINT uTimerTickIntervalMs);
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CUserEventTimer();
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virtual ~CUserEventTimer();
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HRESULT Init();
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static STDMETHODIMP_(int) s_DeleteCB(LPVOID pData1, LPVOID pData2);
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LRESULT v_WndProc(UINT uMsg, WPARAM wParam, LPARAM lParam);
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protected:
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static const UINT_PTR TIMER_ID = 1000;
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static const UINT TIMER_ELAPSE = 5000; // 5 seconds
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static const ULONG MIN_TIMER_ID = 0x00001000;
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static const ULONG MAX_TIMER_ID = 0xDDDD1000;
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// static const DWORD MIN_TIMER_LENGTH = 4500; // 4.5 seconds
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// static const DWORD MAX_TIMER_LENGTH = 5002; // 5 seconds + 2 milliseconds
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static LRESULT CALLBACK s_WndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
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BOOL _CreateWindow();
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void _Destroy();
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void _OnTimer();
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void _KillIntervalTimer();
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int _GetTimerDetailsIndex(HWND hWnd, ULONG uUserEventTimerID);
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HRESULT _SetUserEventTimer( HWND hWnd, UINT uCallbackMessage,
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UINT uNumIntervals, IUserEventTimerCallback * pUserEventTimerCallback,
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ULONG * puUserEventTimerID);
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HRESULT _ResetUserEventTimer(HWND hWnd, UINT uCallbackMessage, UINT uNumIntervals,
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int nIndex);
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ULONG _GetNextInternalTimerID(HWND hWnd);
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inline BOOL _IsAssignedTimerID(HWND hWnd, ULONG uUserEventTimerID)
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{
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return (_GetTimerDetailsIndex(hWnd, uUserEventTimerID) >= 0);
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}
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inline UINT _CalcNumIntervals(UINT uTimerElapse)
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{
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return (UINT)(uTimerElapse/m_uTimerTickInterval);
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}
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inline UINT _CalcMilliSeconds(UINT uIntervalCountdown)
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{
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return (UINT) (uIntervalCountdown*m_uTimerTickInterval);
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}
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LONG m_cRef;
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CDPA<USEREVENTINFO> _dpaUserEventInfo;
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UINT_PTR _uUserTimerID;
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HWND m_hWnd;
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DWORD m_dwUserStartTime;
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UINT m_uTimerTickInterval;
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};
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#endif // _UEVTTMR_H
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