NtInitializeEnclave - NtDoc

#ifndef _NTMMAPI_H
//
// Enclave support
//
#if (PHNT_VERSION >= PHNT_WINDOWS_10)

/**
 * Initializes an enclave that you created and loaded with data.
 *
 * \param ProcessHandle A handle to the process for which the enclave was created.
 * \param BaseAddress Any address within the enclave.
 * \param EnclaveInformation A pointer to architecture-specific information to use to initialize the enclave.
 * \param EnclaveInformationLength The length of the structure that the EnclaveInformation parameter points to, in bytes.
 * \param EnclaveError An optional pointer to a variable that receives an enclave error code that is architecture-specific.
 * \return NTSTATUS Successful or errant status.
 * \see https://learn.microsoft.com/en-us/windows/win32/api/enclaveapi/nf-enclaveapi-initializeenclave
 */
NTSYSCALLAPI
NTSTATUS
NTAPI
NtInitializeEnclave(
    _In_ HANDLE ProcessHandle,
    _In_ PVOID BaseAddress,
    _In_reads_bytes_(EnclaveInformationLength) PVOID EnclaveInformation,
    _In_ ULONG EnclaveInformationLength,
    _Out_opt_ PULONG EnclaveError
    );

#endif
#endif
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#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwInitializeEnclave(
    _In_ HANDLE ProcessHandle,
    _In_ PVOID BaseAddress,
    _In_reads_bytes_(EnclaveInformationLength) PVOID EnclaveInformation,
    _In_ ULONG EnclaveInformationLength,
    _Out_opt_ PULONG EnclaveError
    );

#endif
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