CBasePin::GetMediaType

  • 项目

Retrieves the current type version, which is used by enumerators.

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

Parameters

  • iPosition
    Position in the media type list.
  • pMediaType
    Returned pointer to the media type at this position.

Return Values

Returns E_UNEXPECTED by default implementation; the overriding member function should return one of the following values, or an HRESULT error value if the value could not be set.

Value Description
S_FALSE Media type exists but is not currently usable.
S_OK Media type was set.
VFW_S_NO_MORE_ITEMS End of the list of media types has been reached.

Remarks

This is a virtual member function that returns a media type corresponding to the position in the list specified by the iPosition parameter. This base class simply returns an error because no media types are supported by default. Derived classes should override this member function.

Requirements

DirectShow applications and DirectShow filters have different include file and link library requirements. See Setting Up the Build Environment for more information.

OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
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Last updated on Wednesday, April 13, 2005

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