IWMReaderAdvanced5::SetPlayerHook method (wmsdkidl.h)

Article
4/26/2023

[The feature associated with this page, Windows Media Format 11 SDK, is a legacy feature. It has been superseded by Source Reader and Sink Writer. Source Reader and Sink Writer have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use Source Reader and Sink Writer instead of Windows Media Format 11 SDK, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The SetPlayerHook method assigns a player-hook callback to the reader. The reader calls the callback method before sending each sample to the graphics processor for decompression.

Syntax

HRESULT SetPlayerHook(
  [in] DWORD         dwOutputNum,
  [in] IWMPlayerHook *pHook
);

Parameters

[in] dwOutputNum

The output number to which the player-hook callback applies.

[in] pHook

Pointer to the implementation of the IWMPlayerHook interface that will be used in association with the specified output.

Return value

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

Return code	Description
S_OK	The method succeeded.

Remarks

DirectX Video Acceleration enables supported graphics cards to decompress video samples.

Requirements

Requirement	Value
Minimum supported client	Windows XP [desktop apps only],Windows Media Format 9.5 SDK with update number 888656 installed, or later versions of the SDK
Minimum supported server	Windows Server 2003 [desktop apps only]
Target Platform	Windows
Header	wmsdkidl.h (include Wmsdk.h)
Library	Wmvcore.lib; WMStubDRM.lib (if you use DRM)

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