+extern NTSTATUS (WINAPI *func_NtOpenFile) (PHANDLE FileHandle,
+ ACCESS_MASK DesiredAccess,
+ POBJECT_ATTRIBUTES ObjectAttributes,
+ PIO_STATUS_BLOCK IoStatusBlock,
+ ULONG ShareAccess,
+ ULONG OpenOptions);
+
+extern NTSTATUS (WINAPI *func_NtReadFile) (HANDLE FileHandle,
+ HANDLE Event,
+ PIO_APC_ROUTINE ApcRoutine,
+ PVOID ApcContext,
+ PIO_STATUS_BLOCK IoStatusBlock,
+ PVOID Buffer,
+ ULONG Length,
+ PLARGE_INTEGER ByteOffset,
+ PULONG Key);
+
+extern NTSTATUS (WINAPI *func_NtWriteFile) (HANDLE FileHandle,
+ HANDLE Event,
+ PIO_APC_ROUTINE ApcRoutine,
+ PVOID ApcContext,
+ PIO_STATUS_BLOCK IoStatusBlock,
+ PVOID Buffer,
+ ULONG Length,
+ PLARGE_INTEGER ByteOffset,
+ PULONG Key);