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Retrieves information about the pin.
HRESULT QueryPinInfo( PIN_INFO * pInfo );
Parameters
- pInfo
- [out] Pointer to a
PIN_INFOstructure that
specifies the name of the pin, a pointer to an
IBaseFilterinterface
on its owning filter, and the direction of the pin.
Return Values
Returns an HRESULTvalue that depends on the implementation. HRESULTcan be one of the following standard constants, or other values not listed.
E_FAIL Failure. E_POINTER Null pointer argument. E_INVALIDARG Invalid argument. E_NOTIMPL Method isn't supported. S_OK or NOERROR Success. Remarks
Unlike the pin name in the IPin::QueryIdmethod, which is used by the filter graph manager, the name in the PIN_INFOstructure is intended to be read by users.
On return, the pFiltermember of PIN_INFOhas an outstanding reference count if it is non-NULL, and therefore should be released when the interface is no longer needed.