CBaseFilter.GetPinCount method
[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 GetPinCount method retrieves the number of pins.
Syntax
virtual int GetPinCount() = 0;
Parameters
This method has no parameters.
Return value
Returns the number of pins.
Remarks
The derived class must implement this pure virtual method. Return the number of pins that are currently available on this filter. Filters can dynamically create or destroy pins.
Requirements
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