[DllImport("kernel32")] public static extern int DeviceIoControl(HANDLE hDevice, int dwIoControlCode, IntPtr lpInBuffer, int nInBufferSize, IntPtr lpOutBuffer, int nOutBufferSize, ref int lpBytesReturned, ref OVERLAPPED lpOverlapped);
[DllImport("kernel32")] public static extern int GetOverlappedResult(HANDLE hFile, ref OVERLAPPED lpOverlapped, ref int lpNumberOfBytesTransferred, int bWait);
[DllImport("kernel32")] public static extern int WriteFileEx(HANDLE hFile, IntPtr lpBuffer, int nNumberOfBytesToWrite, ref OVERLAPPED lpOverlapped, ref int lpCompletionRoutine);
[DllImport("kernel32")] public static extern int ConnectNamedPipe(HANDLE hNamedPipe, ref OVERLAPPED lpOverlapped);
[DllImport("kernel32")] public static extern int WriteFile(HANDLE hFile, IntPtr lpBuffer, int nNumberOfBytesToWrite, ref int lpNumberOfBytesWritten, ref OVERLAPPED lpOverlapped);
[DllImport("kernel32")] public static extern int WaitCommEvent(HANDLE hFile, ref int lpEvtMask, ref OVERLAPPED lpOverlapped);
[DllImport("kernel32")] public static extern int UnlockFileEx(HANDLE hFile, int dwReserved, int nNumberOfBytesToUnlockLow, int nNumberOfBytesToUnlockHigh, ref OVERLAPPED lpOverlapped);
[DllImport("kernel32")] public static extern int TransactNamedPipe(HANDLE hNamedPipe, IntPtr lpInBuffer, int nInBufferSize, IntPtr lpOutBuffer, int nOutBufferSize, ref int lpBytesRead, ref OVERLAPPED lpOverlapped);
[DllImport("kernel32")] public static extern int ReadFile(HANDLE hFile, IntPtr lpBuffer, int nNumberOfBytesToRead, ref int lpNumberOfBytesRead, ref OVERLAPPED lpOverlapped);