IWMLicenseRevocationAgent::ProcessLRB method (wmsdkidl.h)

Artikel
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 It has been superseded by Source Reader and Sink Writer.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 ProcessLRB method removes licenses from the license store on the client computer.

Syntax

HRESULT ProcessLRB(
  [in]  BYTE  *pSignedLRB,
  [in]  DWORD dwSignedLRBLength,
  [out] BYTE  *pSignedACK,
  [out] DWORD *pdwSignedACKLength
);

Parameters

[in] pSignedLRB

Address of the signed license revocation blob in memory. This blob is sent to your application by the license server.

[in] dwSignedLRBLength

Size of the license revocation blob in bytes.

[out] pSignedACK

Address of a buffer that receives the signed acknowledgment of license revocation. Your application must send the acknowledgment to the license server.

[out] pdwSignedACKLength

Size of the acknowledgment in bytes.

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

The license server sends the signed license revocation blob after receiving a response to its initial challenge message. For more information, see GetLRBChallenge.

Requirements

Requirement	Value
Minimum supported client	Windows XP [desktop apps only],Windows Media Format 9.5 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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