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Provides an array of pointers to IPinobjects. These are the pins to which this pin internally connects.
HRESULT QueryInternalConnections( IPin ** apPin , ULONG * nPin );
Parameters
- apPin
- Array of IPinpointers.
- nPin
- Upon input, indicates the number of channels; upon output,
indicates the number of pins.
Return Values
Returns one of the following HRESULTvalues.
E_FAIL Undetermined failure. E_NOTIMPL The filter graph manager interprets E_NOTIMPL as meaning all input pins connect to all output pins. S_FALSE Insufficient number of channels; returns no pins in apPin. Remarks
This member function implements the IPin::QueryInternalConnectionsmethod but only to return E_NOTIMPL. Override this if you want to provide mapping between specific input and output pins.
The default implementation to return E_NOTIMPL implies that the caller can assume that all input pins feed all output pins. Overriding this member function allows a filter to specify when it is a renderer for some of its input pins and not for others.