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Retrieves a pointer to the connected pin, if there is one.
HRESULT ConnectedTo( IPin ** ppPin );
Parameters
- ppPin
-
IPininterface of the other
pin (if any) to which this pin is connected.
Return Values
The base class returns S_OK if connected; otherwise, returns VFW_E_NOT_CONNECTED.
Remarks
This member function implements the IPin::ConnectedTomethod. It adds a reference to the connected IPininterface by calling the IUnknown::AddRefmethod, because each copy of an interface pointer has its reference incremented. The calling application is responsible for calling IUnknown::Releaseon this interface when done with it.