ICodecAPI::SetValueWithNotify method (strmif.h)

Article
07/27/2023

[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 SetValueWithNotify method sets a property on a codec and returns a list of other properties that changed as a result.

Syntax

HRESULT SetValueWithNotify(
  [in]  const GUID *Api,
  [in]  VARIANT    *Value,
  [out] GUID       **ChangedParam,
  [out] ULONG      *ChangedParamCount
);

Parameters

[in] Api

Pointer to a GUID that specifies the property to set. For a list of standard codec properties, see Codec API Properties.

[in] Value

Pointer to a VARIANT that contains the new value for the property.

[out] ChangedParam

Receives a pointer to an array of GUIDs. The array contains the GUIDs of any properties that changed as a result of this method call. The caller must free the array by calling CoTaskMemFree.

[out] ChangedParamCount

Receives the number of elements in the ChangedParam array.

Return value

This method can return one of these values.

Return code	Description
S_OK	The method succeeded.
E_NOTIMPL	Not implemented.

Remarks

Codecs that implement ICodecAPI are not required to support this method.

Requirements

Requirement	Value
Minimum supported client	Windows XP with SP2 [desktop apps \| UWP apps]
Minimum supported server	Windows Server 2003 R2 [desktop apps \| UWP apps]
Target Platform	Windows
Header	strmif.h (include Dshow.h)
Library	Strmiids.lib