#ifndef _NTIOAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
NtCancelSynchronousIoFile(
    _In_ HANDLE ThreadHandle,
    _In_opt_ PIO_STATUS_BLOCK IoRequestToCancel,
    _Out_ PIO_STATUS_BLOCK IoStatusBlock
    );

#endif
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#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwCancelSynchronousIoFile(
    _In_ HANDLE ThreadHandle,
    _In_opt_ PIO_STATUS_BLOCK IoRequestToCancel,
    _Out_ PIO_STATUS_BLOCK IoStatusBlock
    );

#endif
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