CPullPin.GetReader 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 GetReader method returns a pointer to the output pin's IAsyncReader interface.


IAsyncReader* GetReader();


This method has no parameters.

Return value

Returns a pointer to the IAsyncReader interface.


The returned interface has an outstanding reference count. The caller must release the interface.

The method does not check the value of the interface pointer before calling AddRef, so do not call this until you have successfully called the CPullPin::Connect method. Otherwise, the interface pointer might be NULL and calling AddRef will throw an exception.


Requirement Value
Strmbase.lib (retail builds);
Strmbasd.lib (debug builds)

See also

CPullPin Class