IDirect3DDevice9Video::CreateCryptoSession method

Creates a cryptographic session to encrypt video content that is sent to the display driver.

Syntax

HRESULT CreateCryptoSession(
   const GUID                    *pCryptoType,
   const GUID                    *pDecodeProfile,
         IDirect3DCryptoSession9 **ppCryptoSession,
         HANDLE                  *pCryptoHandle
);

Parameters

pCryptoType

Pointer to a GUID that specifies the type of encryption to use. The following GUIDs are defined.

D3DCRYPTOTYPE_AES128_CTR (128-bit Advanced Encryption Standard CTR mode (AES-CTR) block cipher.)

D3DCRYPTOTYPE_PROPRIETARY (Proprietary encryption algorithm.)

pDecodeProfile

Pointer to a GUID that specifies the DirectX Video Acceleration 2 (DXVA-2) decoding profile. For a list of possible values, see IDirectXVideoDecoderService::GetDecoderDeviceGuids. If DXVA-2 decoding will not be used, set this parameter to NULL.

ppCryptoSession

Receives a pointer to the IDirect3DCryptoSession9 interface. The caller must release the interface.

pCryptoHandle

Receives a handle for the session.

Return value

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

Requirements

See also

GPU-Based Content Protection

IDirect3DDevice9Video