Starting a Single Timer Event

To start a single timer event, an application must call the timeSetEventCP7TDR function, specifying the amount of time before the callback occurs, the resolution, the address of the callback function (see TimeProc12763FI), and the user data to supply with the callback function. An application can use a function like the following to start a single timer event.

UINT SetTimerCallback(NPSEQ npSeq,  // sequencer data

    UINT msInterval)                // event interval

{ 

    npSeq->wTimerID = timeSetEvent(

        msInterval,                    // delay

        wTimerRes,                     // resolution (global variable)

        OneShotCallback,               // callback function

        (DWORD)npSeq,                  // user data

        TIME_ONESHOT );                // single timer event

    if(! npSeq->wTimerID)

        return ERR_TIMER;

    else

        return ERR_NOERROR;

}

For an example of the callback function OneShotCallback, see Writing a Timer Callback Function11K5P80.