cdynamicoutputpin-deliverbeginflush.md

description	ms.assetid	title	ms.topic	ms.date	topic_type	api_name	api_type	api_location	ms.custom
CDynamicOutputPin.DeliverBeginFlush method - The DeliverBeginFlush method requests the connected input pin to begin a flush operation.	eafc3835-7696-480b-abc8-154938e19b15	CDynamicOutputPin.DeliverBeginFlush method (Amfilter.h)	reference	4/26/2023	APIRef kbSyntax	CDynamicOutputPin.DeliverBeginFlush	COM	Strmbase.lib Strmbase.dll Strmbasd.lib Strmbasd.dll	UpdateFrequency5

CDynamicOutputPin.DeliverBeginFlush 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 DeliverBeginFlush method requests the connected input pin to begin a flush operation.

Syntax

HRESULT DeliverBeginFlush();

Parameters

This method has no parameters.

Return value

Returns S_OK if successful, or an HRESULT value indicating the cause of the failure.

Remarks

This method overrides the CBaseOutputPin::DeliverBeginFlush method. It sets the CDynamicOutputPin::m_hStopEvent event.

Requirements

Requirement	Value
Header	Amfilter.h (include Streams.h)
Library	Strmbase.lib (retail builds); Strmbasd.lib (debug builds)

See also

CDynamicOutputPin Class