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CEnumMediaTypes.Clone 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 Clone method makes a copy of the enumerator with the same enumeration state. This method implements the IEnumMediaTypes::Clone method.

Syntax

HRESULT Clone(
   IEnumMediaTypes **ppEnum
);

Parameters

ppEnum

Address of a variable that receives a pointer to the IEnumMediaTypes interface of the new enumerator.

Return value

Returns one of the HRESULT values shown in the following table.

Return code Description
S_OK
 Success.
E_OUTOFMEMORY
 Insufficient memory.
E_POINTER
 NULL pointer argument.
VFW_E_ENUM_OUT_OF_SYNC
 The pin's state has changed and is now inconsistent with the enumerator.

Requirements

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

See also

CEnumMediaTypes Class