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CMemAllocator.CreateInstance method

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[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 CreateInstance method creates a new instance of the CMemAllocator class.

Syntax

static CUnknown* CreateInstance(
   LPUNKNOWN pUnk,
   HRESULT   *phr
);

Parameters

pUnk

Pointer to the owner of this object. If the object is aggregated, pass a pointer to the aggregating object's IUnknown interface. Otherwise, set this parameter to NULL.

phr

Pointer to a variable that receives an HRESULT value indicating the success or failure of the method.

Return value

Returns a pointer to a new CMemAllocator object, typed as a CUnknown object.

Requirements

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

See also

CMemAllocator Class