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4/8/2010

Provides a media type enumerator from the upstream filter.

Syntax 

HRESULT EnumMediaTypes(
  IEnumMediaTypes** 
ppEnum 
);

Parameters

ppEnum

Pointer to an enumerator for the media types.

Return Value

Returns NOERROR if successful, VFW_E_NOT_CONNECTEDif there is no connection, or an HRESULTthat indicates an error with the enumerator, such as E_POINTER or E_OUTOFMEMORY.

Remarks

This member function overrides the CBasePin::EnumMediaTypesmember function and implements the IPin::EnumMediaTypesmethod.

Transform-inplace filters use the media type enumerator from adjacent filters because they do not change the media type.

This member function calls IPin::EnumMediaTypeson the output pin connected to the filter's input pin.

If an application receives an enumerator, the application must release it when finished.

Requirements

Windows Embedded CE Windows CE 2.12 and later
Note Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements
For more information, see Setting Up the Build Environment,
Version 2.12 requires DXPAK 1.0 or later