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CTransformFilter.FindPin method

The FindPin method gets the pin with the specified identifier. This method implements the IBaseFilter::FindPin method.

Syntax


HRESULT FindPin(
  LPCWSTR Id,
  IPin **ppPin
);

Parameters

Id

Wide-character string that contains the pin identifier.

ppPin

Receives a pointer to the pin's IPin interface. If the method fails, *ppPin is set to NULL.

Return value

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

Return codeDescription
S_OK

Success.

E_OUTOFMEMORY

Insufficient memory.

E_POINTER

NULL pointer argument.

VFW_E_NOT_FOUND

Could not find a pin with this identifier.

 

Remarks

Important  The implementation of this method does not call IPin::QueryId to match the pin identifier. Instead, the method assumes that the input pin is named "In", and the output pin is named "Out". If you use a different set of pin identifiers, override this method.

Requirements

Header

Transfrm.h (include Streams.h)

Library

Strmbase.lib (retail builds);
Strmbasd.lib (debug builds)

See also

CTransformFilter Class

 

 

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