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CSource.FindPin method

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[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

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

Syntax

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

Parameters

Id

Pointer to a null-terminated string that identifies the pin.

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 code Description
S_OK
 Success.
E_POINTER
 NULL pointer argument.
VFW_E_NOT_FOUND
 Could not find a pin with this identifier.

Remarks

The first pin is always named "1"; the second pin is named "2"; and so forth. For more information, see CSourceStream::QueryId.

Requirements

Requirement Value
Header
Source.h (include Streams.h)
Library
Strmbase.lib (retail builds);
Strmbasd.lib (debug builds)

See also

CSource Class