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CTransformFilter::GetMediaType

  • Artículo
 
Microsoft DirectShow 9.0

CTransformFilter::GetMediaType

The GetMediaType method retrieves a preferred media type for the output pin.

Syntax

  virtual HRESULT GetMediaType(
    int iPosition,
    CMediaType *pMediaType
) PURE;

Parameters

iPosition

Zero-based index value.

pMediaType

Pointer to a CMediaType object that receives the media type.

Return Value

Returns an HRESULT value. Possible values include those shown in the following table.

Value Description
S_OK Success.
VFW_S_NO_MORE_ITEMS Index out of range.
E_INVALIDARG Index less than zero.

Remarks

The output pin's CTransformOutputPin::GetMediaType method calls this method. The derived class must implement this method. For more information, see CBasePin::GetMediaType.

Requirements

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

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

See Also