IMediaObject::GetStreamCount

  • 项目

This method retrieves the number of input and output streams.

HRESULT GetStreamCount(
  DWORD* pcInputStreams,
  DWORD* pcOutputStreams
);

Parameters

  • pcInputStreams
    [out] Pointer to a variable that receives the number of input streams. The pcInputStreams parameter cannot be NULL.
  • pcOutputStreams
    [out] Pointer to a variable that receives the number of output streams. The pcOutputStreams parameter cannot be NULL.

Return Values

Returns an HRESULT value. Possible values include the following.

Value Description
S_OK Retrieved the requested number of items
E_POINTER NULL pointer argument

Remarks

The DMO might have zero input streams or zero output streams. The number of streams does not change, and a DMO cannot dynamically add or remove streams.

Requirements

OS Versions: Windows CE .NET 4.1 and later.
Header: Dmo.h.
Link Library: Dmoguid.lib.

See Also

IMediaObject

Last updated on Wednesday, April 13, 2005

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