타이머 - Win32

KeInitializeTimer() // ASSERT(KeGetCurrentIrql() <= DISPATCH_LEVEL)
KeInitializeTimerEx()
KeSetTimer() // ASSERT(KeGetCurrentIrql() <= DISPATCH_LEVEL)
KeSetTimerEx()
KeCancelTimer() // ASSERT(KeGetCurrentIrql() <= DISPATCH_LEVEL)

IoInitializeTimer()
IoStartTimer()
IoStopTimer()

==

CreateWatableTimer()
CloseHandle()
SetWatableTimer()
CancelWatableTimer()

SetTimer()
KillTimer()
c.f. UI 쓰레드?

static VOID CALLBACK OnTimer(HWND hWnd, UINT uMsg, UINT idEvent, DWORD dwTime)
{
    ..
    return;
}

int _tmain(int argc, LPTSTR argv[])
{
    UINT idEvent = 0, Period;
    UINT TimerId;
    ..
    TimerId = SetTimer(NULL, idEvent, Period, OnTimer);
    if (TimerId == 0) ReportError(_T("Failure setting timer"), 2, TRUE);

    MessageBox(NULL, _T("me!"), _T("Stop"), MB_ICONEXCLAMATION);
   
    KillTimer(NULL, TimerId);
    return 0;
}

멀티미디어 타이머

timeGetDevCaps()
timeBeginPeriod()
timeEndPeriod()
timeSetEvent()
timeKillEvent()

#include <mmsystem.h>

#pragma comment(lib, "winmm")

class CMMTimerDlg : public CDialog
{
// {
    UINT m_nMs;
    UINT m_TimerID;
    BOOL MM_Toggle;
// }
// Construction
public:
    CMMTimerDlg(CWnd* pParent = NULL);    // standard constructor
...
    // Generated message map functions
    //{{AFX_MSG(CMMTimerDlg)
    ...
    afx_msg void OnDestroy();
    afx_msg void OnBtnMm();
    //}}AFX_MSG
// {
    afx_msg void OnMM(WPARAM wParam, LPARAM lParam);
// }
    DECLARE_MESSAGE_MAP()
};


// {
#include <mmsystem.h>

#define UM_MYMSGMM (WM_USER + 1)
// }
BEGIN_MESSAGE_MAP(CMMTimerDlg, CDialog)
    //{{AFX_MSG_MAP(CMMTimerDlg)
    ...
    ON_WM_DESTROY()
    ON_BN_CLICKED(IDC_BTN_MM, OnBtnMm)
    //}}AFX_MSG_MAP
// {
    ON_MESSAGE(UM_MYMSGMM, OnMM )
// }
END_MESSAGE_MAP()
...
BOOL CMMTimerDlg::OnInitDialog()
{
    ...
    SetIcon(m_hIcon, FALSE);        // Set small icon
   
    // TODO: Add extra initialization here
// {
    m_nMs = 1000;
    m_TimerID = 0;

    TIMECAPS tc;
    timeGetDevCaps(&tc,sizeof(TIMECAPS));

    if(m_nMs < tc.wPeriodMin)
        m_nMs = tc.wPeriodMin;
    else if(nMs > tc.wPeriodMax)
        m_nMs = tc.wPeriodMax;

    timeBeginPeriod(m_nMs);   

    MM_Toggle = FALSE;
// }   
    return TRUE;  // return TRUE  unless you set the focus to a control
}

void CMMTimerDlg::OnDestroy()
{
    CDialog::OnDestroy();
   
    // TODO: Add your message handler code here
// {
    if( m_TimerID != 0)
        timeKillEvent(m_TimerID);

    timeEndPeriod(m_nMs);
// }   
}
...
// {
//멀티미디어 타이머 콜백 함수
void CALLBACK TimerProc(UINT uiID, UINT uiMsg, DWORD dwUser, DWORD dw1, DWORD dw2)
{
    CMMTimerDlg *pDlg = (CMMTimerDlg *)AfxGetMainWnd();
    pDlg->SendMessage(UM_MYMSGMM, 0, 0);
}
// }
void CMMTimerDlg::OnBtnMm()
{
    // TODO: Add your control notification handler code here
     if (MM_Toggle == FALSE) {
        m_TimerID = timeSetEvent(m_nMs, 0, &TimerProc, (DWORD)this, TIME_PERIODIC);// 멀티미디어 타이머 설정

        MM_Toggle = TRUE;
    } else {
        timeKillEvent(m_TimerID);//멀티미디어 타이머 죽임

m_TimerID = 0;

        MM_Toggle = FALSE;
    }
}

void CMMTimerDlg::OnMM(WPARAM wParam, LPARAM lParam)
{
...
}

참조 사이트:

http://www.codeproject.com/KB/system/timers_intro.aspx
http://www.gpgstudy.com/gpgiki/%EC%8B%9C%EA%B0%84%20%EB%8B%A4%EB%A3%A8%EA%B8%B0