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CMediaSample::SetActualDataLength

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Microsoft DirectShow 9.0

CMediaSample::SetActualDataLength

The SetActualDataLength method sets the length of the valid data in the buffer. This method implements the IMediaSample::SetActualDataLength method.

Syntax

  HRESULT SetActualDataLength(
    long lLen
);

Parameters

lLen

Length of the valid data, in bytes.

Return Value

Returns one of the HRESULT values shown in the following table.

Value Description
S_OK Success.
VFW_E_BUFFER_OVERFLOW lLen is larger than the allocated buffer size.

Remarks

This method sets the CMediaSample::m_lActual member variable.

Requirements

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

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

See Also