| Microsoft DirectX 9.0 | 
The SetSyncSource method notifies the base class of the current reference clock.
Syntax
void SetSyncSource(
    IReferenceClock *pRefClock
);
Parameters
pRefClock
Pointer to the IReferenceClock interface of the reference clock.
Return Values
This method does not return a value.
Remarks
Call this method from inside the filter's IMediaFilter::SetSyncSource method. The CBaseStreamControl class uses the IReferenceClock interface to ensure that it does not discard samples too quickly.
Example Code
STDMETHODIMP CMyFilter::SetSyncSource(IReferenceClock *pClock)
{
    // Note: It's OK if pClock is NULL.
    m_pMyPin->SetSyncSource(pClock);
    return CBaseFilter::SetSyncSource(pClock);
}
See Also