// d3dumddi.h
typedef struct _GETENCRYPTIONBLTKEY {
[in] HANDLE hCryptoSession;
[in] VOID *pReadBackKey;
[in] UINT KeySize;
} D3DDDIARG_GETENCRYPTIONBLTKEY;
View the official Windows Driver Kit DDI referenceNo description available.
The _GETENCRYPTIONBLTKEY structure describes an encrypted bit-block transfer (bitblt) session for which the GetEncryptionBltKey function retrieves the encryption key.
hCryptoSession [in]A handle to the encryption session that is created in a call to the driver's CreateCryptoSession function.
pReadBackKey [in]A pointer to a buffer that contains the encryption key.
KeySize [in]The size, in bytes, of the encryption key that the pReadBackKey member points to.