通过

COutputQueue::BeginFlush

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Microsoft DirectShow 9.0

COutputQueue::BeginFlush

The BeginFlush method begins a flush operation.

Syntax

  void BeginFlush(void);

Remarks

This method sets the COutputQueue::m_bFlushing member variable to TRUE. If the object is using a thread, the thread calls the COutputQueue::FreeSamples method to free any pending samples. Otherwise, the object calls FreeSamples during the COutputQueue::EndFlush method. This method also sets the COutputQueue::m_hr member variable to S_FALSE, which causes the object to discard all new samples.

The object passes the flush notification downstream by calling the IPin::BeginFlush method on the input pin.

Requirements

**  Header:** Declared in Outputq.h; include Streams.h.

**  Library:** Use Strmbase.lib (retail builds) or Strmbasd.lib (debug builds).

See Also