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ID3D11VideoDevice::CheckCryptoKeyExchange method (d3d11.h)

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Gets a cryptographic key-exchange mechanism that is supported by the driver.

Syntax

HRESULT CheckCryptoKeyExchange(
  [in]  const GUID *pCryptoType,
  [in]  const GUID *pDecoderProfile,
  [in]  UINT       Index,
  [out] GUID       *pKeyExchangeType
);

Parameters

[in] pCryptoType

A pointer to a GUID that specifies the type of encryption to be used. The following GUIDs are defined.

Value Meaning
D3D11_CRYPTO_TYPE_AES128_CTR
 128-bit Advanced Encryption Standard CTR mode (AES-CTR) block cipher.

[in] pDecoderProfile

A pointer to a GUID that specifies the decoding profile. To get profiles that the driver supports, call ID3D11VideoDevice::GetVideoDecoderProfile. If decoding will not be used, set this parameter to NULL.

[in] Index

The zero-based index of the key-exchange type. The driver reports the number of types in the KeyExchangeTypeCount member of the D3D11_VIDEO_CONTENT_PROTECTION_CAPS structure.

[out] pKeyExchangeType

Receives a GUID that identifies the type of key exchange.

Return value

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Requirements

Requirement Value
Minimum supported client Windows 8 [desktop apps | UWP apps]
Minimum supported server Windows Server 2012 [desktop apps | UWP apps]
Target Platform Windows
Header d3d11.h

See also

ID3D11VideoDevice