using System.Runtime.InteropServices;
 

        private enum DesiredAccess : uint
        {
            GENERIC_READ = 0x80000000,
            GENERIC_WRITE = 0x40000000,
            GENERIC_EXECUTE = 0x20000000
        }
        private enum ShareMode : uint
        {
            FILE_SHARE_READ = 0x00000001,
            FILE_SHARE_WRITE = 0x00000002,
            FILE_SHARE_DELETE = 0x00000004
        }
        private enum CreationDisposition : uint
        {
            CREATE_NEW = 1,
            CREATE_ALWAYS = 2,
            OPEN_EXISTING = 3,
            OPEN_ALWAYS = 4,
            TRUNCATE_EXISTING = 5
        }
        private enum FlagsAndAttributes : uint
        {
            FILE_ATTRIBUTE_ARCHIVE = 0x00000020,
            FILE_ATTRIBUTE_ENCRYPTED = 0x00004000,
            FILE_ATTRIBUTE_HIDDEN = 0x00000002,
            FILE_ATTRIBUTE_NORMAL = 0x00000080,
            FILE_ATTRIBUTE_NOT_CONTENT_INDEXED = 0x00002000,
            FILE_ATTRIBUTE_OFFLINE = 0x00001000,
            FILE_ATTRIBUTE_READONLY = 0x00000001,
            FILE_ATTRIBUTE_SYSTEM = 0x00000004,
            FILE_ATTRIBUTE_TEMPORARY = 0x00000100
        }
 

        //ジョイスティックオープン用
        [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
        private static extern IntPtr CreateFile(
            string lpFileName,
            DesiredAccess dwDesiredAccess,
            ShareMode dwShareMode,
            int lpSecurityAttributes,
            CreationDisposition dwCreationDisposition,
            FlagsAndAttributes dwFlagsAndAttributes,
            IntPtr hTemplateFile
            );
 

        //データを送る
        [DllImport("kernel32", SetLastError = true)]
        [return: MarshalAs(UnmanagedType.Bool)]
        private static extern bool DeviceIoControl(
            IntPtr hDevice,
            uint dwIoControlCode,
            ref JOYSTICK_STATE lpInBuffer,
            uint uInBufferSize,
            ref byte[] lpOutBuffer,
            uint uOutBufferSize,
            ref int lpBytesReturned,
            int Overlapped
            );
 

        private uint CTL_CODE(uint DeviceType, uint Function, uint Method, uint Access)
        {
            return ((DeviceType << 16) | (Access << 14) | (Function << 2) | Method);
        }
 

        [StructLayout(LayoutKind.Sequential, Pack = 1)]
        struct JOYSTICK_STATE
        {
            [MarshalAs(UnmanagedType.U4, SizeConst = 1)]
            public uint Signature;
            [MarshalAs(UnmanagedType.U1, SizeConst = 1)]
            public char NumAnalog;
            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
            public int[] Analog;
            [MarshalAs(UnmanagedType.U1, SizeConst = 1)]
            public char NumDigital;
            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)]
            public char[] Digital;
        }
 

IntPtr hPtr = CreateFile("\\\\.\\PPJoyIOCTL1",
                                        DesiredAccess.GENERIC_WRITE,
                                        ShareMode.FILE_SHARE_WRITE,
                                        0,
                                        CreationDisposition.OPEN_EXISTING,
                                        0,
                                        IntPtr.Zero);
 

JOYSTICK_STATE joyState = new JOYSTICK_STATE();
            joyState.Signature = (uint)0x53544143;
            joyState.NumAnalog = (char)8;
            joyState.NumDigital = (char)16;

            joyState.Analog = new int[8];

            joyState.Analog[0] = 64;
            joyState.Analog[1] = 64;
            joyState.Analog[2] = 64;
            joyState.Analog[3] = 64;
            joyState.Analog[4] = 64;
            joyState.Analog[5] = 64;
            joyState.Analog[6] = 64;
            joyState.Analog[7] = 64;

            joyState.Digital = new char[16];

            joyState.Digital[0] = (char)1;
            joyState.Digital[1] = (char)0;
            joyState.Digital[2] = (char)0;
            joyState.Digital[3] = (char)0;
            joyState.Digital[4] = (char)0;
            joyState.Digital[5] = (char)0;
            joyState.Digital[6] = (char)0;
            joyState.Digital[7] = (char)0;
            joyState.Digital[8] = (char)0;
            joyState.Digital[9] = (char)0;
            joyState.Digital[10] = (char)0;
            joyState.Digital[11] = (char)0;
            joyState.Digital[12] = (char)0;
            joyState.Digital[13] = (char)0;
            joyState.Digital[14] = (char)0;
            joyState.Digital[15] = (char)0;
 

            //FILE_DEVICE_UNKNOWN = 0x22, index = 0, METHOD_BUFFERED = 0, FILE_ANY_ACCEESS = 0
            uint ioctlState = CTL_CODE(0x00000022, 0, 0, 0);
 

            int RetSize = 0;
            byte[] outBuffer = null;

            int joySize = Marshal.SizeOf(joyState.Signature);
            joySize += Marshal.SizeOf(joyState.NumAnalog);
            joySize += Marshal.SizeOf(joyState.Analog[0]) * 8;
            joySize += Marshal.SizeOf(joyState.NumDigital);
            joySize += Marshal.SizeOf(joyState.Digital[0]) * 16;

            DeviceIoControl(hPtr, ioctlState, ref joyState, (uint)joySize, ref outBuffer, 0, ref RetSize, 0);