IWMDRMDecrypt::Decrypt method

[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 It has been superseded by Source Reader and Sink Writer.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 Decrypt method decrypts a data buffer in place.

Syntax

HRESULT Decrypt(
  [in, out] BYTE            *pbData,
  [in]      DWORD           cbData,
  [in]      WMDRMCryptoData *pWMCryptoData
);

Parameters

pbData [in, out]

Data to be decrypted. If the method succeeds, this data is decrypted on return.

cbData [in]

Size of the data in bytes.

pWMCryptoData [in]

Pointer to a WMDRMCryptoData structure containing extra parameters. Can be NULL if the content was encrypted using the default parameters.

Return value

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

Remarks

None.

Requirements

See also

IWMDRMDecrypt Interface

WMDRMCryptoData