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Retrieves the number of input pins supported.
virtual int GetPinCount(void);
Return Values
The default implementation returns one, since only one pin is supported. Override to support more than one pin. Because the base renderer class is specifically designed for single-pin operation, considerably more of the base class functionality would have to be changed to make a multipin renderer. Future versions of the SDK might provide this functionality.
Remarks
This member function overrides CBaseFilter::GetPinCount.