Microsoft Windows CE 3.0  

CBaseMediaFilter::GetSyncSource

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Retrieves the current reference clock in use by this filter.

HRESULT GetSyncSource(
IReferenceClock **
pClock
);

Parameters

pClock
Pointer to a reference clock; will be set to the IReferenceClockinterface.

Return Values

Returns an HRESULTvalue

Remarks

This member function implements the IMediaFilter::GetSyncSourcemethod. It returns the value of m_pClockafter adding a reference to it. Be sure to release the interface by calling the IUnknown::Releasemethod when finished with the pointer.

Filters should derive their filters from CBaseFilterand not from CBaseMediaFilter, so filters will not likely use this member function. Use CBaseFilter::GetSyncSourceinstead.