nf-mfidl-imfsampleallocatorcontrol-getallocatorusage.md

UID	title	ms.date	targetos	description	tech.root	req.assembly	req.construct-type	req.ddi-compliance	req.dll	req.header	req.idl	req.include-header	req.irql	req.kmdf-ver	req.lib	req.max-support	req.namespace	req.redist	req.target-min-winverclnt	req.target-min-winversvr	req.target-type	req.type-library	req.umdf-ver	req.unicode-ansi	topic_type	api_type	api_location	api_name	f1_keywords	dev_langs
NF:mfidl.IMFSampleAllocatorControl.GetAllocatorUsage	IMFSampleAllocatorControl::GetAllocatorUsage	11/4/2019	Windows	Retrieves the sample allocator usage for the specified output stream.	mf		function		mfuuid.dll	mfidl.h									Windows 10, version 2004 (10.0; Build 19041)	Windows Server, version 2004 (10.0; Build 19041)					apiref	COM	mfuuid.lib mfuuid.dll	IMFSampleAllocatorControl::GetAllocatorUsage	IMFSampleAllocatorControl::GetAllocatorUsage mfidl/IMFSampleAllocatorControl::GetAllocatorUsage	c++

-description

Retrieves the sample allocator usage for the specified output stream.

-parameters

-param dwOutputStreamID

The ID of the output stream whose sample allocator usage is requested.

-param pdwInputStreamID

If the allocator usage is MFSampleAllocatorUsage_DoesNotAllocate, then this output parameter is set to the ID of the input stream that the output samples are coming from. For all other allocator usage values, this parameter is ignored.

-param peUsage

A member of the MFSampleAllocatorUsage enumeration specifying the sample allocator usage of the specified output stream.

-returns

The method returns an HRESULT.

-remarks

-see-also