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CBasePin.ConnectedTo 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 ConnectedTo method retrieves a pointer to the connected pin, if any. This method implements the IPin::ConnectedTo method.

Syntax

HRESULT ConnectedTo(
   IPin **ppPin
);

Parameters

ppPin

Address of a variable that receives a pointer to the IPin interface of the other pin.

Return value

Returns an HRESULT value. Possible values include those in the following table.

Return code Description
S_OK
 Success.
E_POINTER
 NULL pointer argument.
VFW_E_NOT_CONNECTED
 Pin is not connected.

Remarks

If the method succeeds, the IPin interface that it returns has an outstanding reference count. Be sure to release it when you are done.

Requirements

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

See also

CBasePin Class