ISCPSecureQuery::GetRights method (mswmdm.h)

The GetRights method retrieves rights information for the current piece of content. Rights are file-specific.

Syntax

HRESULT GetRights(
  [in]      BYTE                *pData,
  [in]      DWORD               dwSize,
  [in]      BYTE                *pbSPSessionKey,
  [in]      DWORD               dwSessionKeyLen,
  [in]      IMDSPStorageGlobals *pStgGlobals,
  [out]     PWMDMRIGHTS         *ppRights,
  [out]     UINT                *pnRightsCount,
  [in, out] BYTE [8]            abMac
);

Parameters

[in] pData

Pointer to data requested by GetDataDemands. This parameter must be included in the input message authentication code and must be encrypted.

[in] dwSize

Number of bytes of data in the pData buffer. This parameter must be included in the input message authentication code.

[in] pbSPSessionKey

Pointer to an array of bytes containing the session key for securing communication with the service provider to which pStgGlobals points. This parameter must be included in the input message authentication code and must be encrypted.

[in] dwSessionKeyLen

Length of the byte array to which pbSPSessionKey points. This parameter must be included in the input message authentication code.

[in] pStgGlobals

Pointer to an IWMDMStorageGlobals interface on the root storage of the media or device to or from which the file is being transferred.

[out] ppRights

Pointer to an array of WMDMRIGHTS structures containing the rights information for this object. The array is allocated by this method and must be freed using CoTaskMemFree. This parameter is included in the output message authentication code.

[out] pnRightsCount

Number of WMDMRIGHTS structures in the ppRights array. This parameter is included in the output message authentication code.

[in, out] abMac

Array of eight bytes containing the message authentication code for the parameter data of this method. (WMDM_MAC_LENGTH is defined as 8.)

Return value

If the method succeeds, it returns S_OK. If it fails, it returns an HRESULT error code.

Return code	Description
WMDM_E_CALL_OUT_OF_SEQUENCE	This method was called out of sequence. GetDataDemands and then ExamineData must be called first, in that order.
WMDM_E_MAC_CHECK_FAILED	The message authentication code is not valid.
WMDM_E_NORIGHTS	The caller does not have the rights required to perform the requested operation.
E_INVALIDARG	A parameter is invalid or is a NULL pointer.
E_FAIL	An unspecified error occurred.

Remarks

This method must not be called until GetDataDemands and then ExamineData have been called, in that order.

Requirements

Requirement	Value
Target Platform	Windows
Header	mswmdm.h
Library	Mssachlp.lib

See also

ISCPSecureQuery Interface

IWMDMStorageGlobals Interface

WMDMRIGHTS