diff -r 72885c950813 -r cdc5f8f1b79e Win32/Win32Hid.cs
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Win32/Win32Hid.cs	Sun Mar 15 20:25:58 2015 +0100
@@ -0,0 +1,515 @@
+//
+// Copyright (C) 2014-2015 Stéphane Lenclud.
+//
+// This file is part of SharpLibHid.
+//
+// SharpDisplayManager is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// SharpDisplayManager is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with SharpDisplayManager.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+using System;
+using System.Runtime.InteropServices;
+using Microsoft.Win32.SafeHandles;
+using System.Text;
+
+namespace SharpLib.Win32
+{
+
+    static partial class Function
+    {
+        [DllImport("hid.dll", CharSet = CharSet.Unicode)]
+        public static extern HidStatus HidP_GetUsagesEx(HIDP_REPORT_TYPE ReportType, ushort LinkCollection, [Out, MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 3)] USAGE_AND_PAGE[] ButtonList, ref uint UsageLength, IntPtr PreparsedData, [MarshalAs(UnmanagedType.LPArray)] byte[] Report, uint ReportLength);
+
+        [DllImport("hid.dll", CharSet = CharSet.Auto, SetLastError = true)]
+        public static extern Boolean HidD_GetManufacturerString(SafeFileHandle HidDeviceObject, StringBuilder Buffer, Int32 BufferLength);
+
+        [DllImport("hid.dll", CharSet = CharSet.Auto, SetLastError = true)]
+        public static extern Boolean HidD_GetProductString(SafeFileHandle HidDeviceObject, StringBuilder Buffer, Int32 BufferLength);
+
+        [DllImport("hid.dll", CharSet = CharSet.Auto, SetLastError = true)]
+        public static extern Boolean HidD_GetAttributes(SafeFileHandle HidDeviceObject, ref HIDD_ATTRIBUTES Attributes);
+
+        /// Return Type: NTSTATUS->LONG->int
+        ///PreparsedData: PHIDP_PREPARSED_DATA->_HIDP_PREPARSED_DATA*
+        ///Capabilities: PHIDP_CAPS->_HIDP_CAPS*
+        [DllImport("hid.dll", EntryPoint = "HidP_GetCaps", CallingConvention = CallingConvention.StdCall)]
+        public static extern HidStatus HidP_GetCaps(System.IntPtr PreparsedData, ref HIDP_CAPS Capabilities);
+
+        /// Return Type: NTSTATUS->LONG->int
+        ///ReportType: HIDP_REPORT_TYPE->_HIDP_REPORT_TYPE
+        ///ButtonCaps: PHIDP_BUTTON_CAPS->_HIDP_BUTTON_CAPS*
+        ///ButtonCapsLength: PUSHORT->USHORT*
+        ///PreparsedData: PHIDP_PREPARSED_DATA->_HIDP_PREPARSED_DATA*
+        [DllImport("hid.dll", EntryPoint = "HidP_GetButtonCaps", CallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall)]
+        public static extern HidStatus HidP_GetButtonCaps(HIDP_REPORT_TYPE ReportType, [Out, MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 2)] HIDP_BUTTON_CAPS[] ButtonCaps, ref ushort ButtonCapsLength, System.IntPtr PreparsedData);
+
+        /// Return Type: NTSTATUS->LONG->int
+        ///ReportType: HIDP_REPORT_TYPE->_HIDP_REPORT_TYPE
+        ///ValueCaps: PHIDP_VALUE_CAPS->_HIDP_VALUE_CAPS*
+        ///ValueCapsLength: PUSHORT->USHORT*
+        ///PreparsedData: PHIDP_PREPARSED_DATA->_HIDP_PREPARSED_DATA*
+        [DllImport("hid.dll", EntryPoint = "HidP_GetValueCaps", CallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall)]
+        public static extern HidStatus HidP_GetValueCaps(HIDP_REPORT_TYPE ReportType, [Out, MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 2)] HIDP_VALUE_CAPS[] ValueCaps, ref ushort ValueCapsLength, System.IntPtr PreparsedData);
+
+        /// Return Type: NTSTATUS->LONG->int
+        ///ReportType: HIDP_REPORT_TYPE->_HIDP_REPORT_TYPE
+        ///UsagePage: USAGE->USHORT->unsigned short
+        ///LinkCollection: USHORT->unsigned short
+        ///Usage: USAGE->USHORT->unsigned short
+        ///UsageValue: PULONG->ULONG*
+        ///PreparsedData: PHIDP_PREPARSED_DATA->_HIDP_PREPARSED_DATA*
+        ///Report: PCHAR->CHAR*
+        ///ReportLength: ULONG->unsigned int
+        [DllImport("hid.dll", EntryPoint = "HidP_GetUsageValue", CallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall)]
+        public static extern HidStatus HidP_GetUsageValue(HIDP_REPORT_TYPE ReportType, ushort UsagePage, ushort LinkCollection, ushort Usage, ref uint UsageValue, System.IntPtr PreparsedData, [MarshalAs(UnmanagedType.LPArray)] byte[] Report, uint ReportLength);
+
+
+
+    }
+
+
+    static partial class Macro
+    {
+
+
+    }
+
+
+    static partial class Const
+    {
+
+
+    }
+
+
+    public enum HIDP_REPORT_TYPE : ushort
+    {
+        HidP_Input = 0,
+        HidP_Output,
+        HidP_Feature
+    }
+
+
+    public enum HidStatus : uint
+    {
+        HIDP_STATUS_SUCCESS = 0x110000,
+        HIDP_STATUS_NULL = 0x80110001,
+        HIDP_STATUS_INVALID_PREPARSED_DATA = 0xc0110001,
+        HIDP_STATUS_INVALID_REPORT_TYPE = 0xc0110002,
+        HIDP_STATUS_INVALID_REPORT_LENGTH = 0xc0110003,
+        HIDP_STATUS_USAGE_NOT_FOUND = 0xc0110004,
+        HIDP_STATUS_VALUE_OUT_OF_RANGE = 0xc0110005,
+        HIDP_STATUS_BAD_LOG_PHY_VALUES = 0xc0110006,
+        HIDP_STATUS_BUFFER_TOO_SMALL = 0xc0110007,
+        HIDP_STATUS_INTERNAL_ERROR = 0xc0110008,
+        HIDP_STATUS_I8042_TRANS_UNKNOWN = 0xc0110009,
+        HIDP_STATUS_INCOMPATIBLE_REPORT_ID = 0xc011000a,
+        HIDP_STATUS_NOT_VALUE_ARRAY = 0xc011000b,
+        HIDP_STATUS_IS_VALUE_ARRAY = 0xc011000c,
+        HIDP_STATUS_DATA_INDEX_NOT_FOUND = 0xc011000d,
+        HIDP_STATUS_DATA_INDEX_OUT_OF_RANGE = 0xc011000e,
+        HIDP_STATUS_BUTTON_NOT_PRESSED = 0xc011000f,
+        HIDP_STATUS_REPORT_DOES_NOT_EXIST = 0xc0110010,
+        HIDP_STATUS_NOT_IMPLEMENTED = 0xc0110020,
+        HIDP_STATUS_I8242_TRANS_UNKNOWN = 0xc0110009
+    }
+
+
+    [StructLayout(LayoutKind.Sequential)]
+    public struct USAGE_AND_PAGE
+    {
+        public ushort Usage;
+        public ushort UsagePage;
+    };
+
+    [StructLayout(LayoutKind.Sequential)]
+    public struct HIDD_ATTRIBUTES
+    {
+        public uint Size;
+        public ushort VendorID;
+        public ushort ProductID;
+        public ushort VersionNumber;
+    }
+
+
+    [StructLayout(System.Runtime.InteropServices.LayoutKind.Sequential)]
+    public struct HIDP_CAPS
+    {
+        /// USAGE->USHORT->unsigned short
+        public ushort Usage;
+
+        /// USAGE->USHORT->unsigned short
+        public ushort UsagePage;
+
+        /// USHORT->unsigned short
+        public ushort InputReportByteLength;
+
+        /// USHORT->unsigned short
+        public ushort OutputReportByteLength;
+
+        /// USHORT->unsigned short
+        public ushort FeatureReportByteLength;
+
+        /// USHORT[17]
+        [MarshalAs(System.Runtime.InteropServices.UnmanagedType.ByValArray, SizeConst = 17, ArraySubType = System.Runtime.InteropServices.UnmanagedType.U2)]
+        public ushort[] Reserved;
+
+        /// USHORT->unsigned short
+        public ushort NumberLinkCollectionNodes;
+
+        /// USHORT->unsigned short
+        public ushort NumberInputButtonCaps;
+
+        /// USHORT->unsigned short
+        public ushort NumberInputValueCaps;
+
+        /// USHORT->unsigned short
+        public ushort NumberInputDataIndices;
+
+        /// USHORT->unsigned short
+        public ushort NumberOutputButtonCaps;
+
+        /// USHORT->unsigned short
+        public ushort NumberOutputValueCaps;
+
+        /// USHORT->unsigned short
+        public ushort NumberOutputDataIndices;
+
+        /// USHORT->unsigned short
+        public ushort NumberFeatureButtonCaps;
+
+        /// USHORT->unsigned short
+        public ushort NumberFeatureValueCaps;
+
+        /// USHORT->unsigned short
+        public ushort NumberFeatureDataIndices;
+    }
+
+    /// <summary>
+    /// Type created in place of an anonymous struct
+    /// </summary>
+    [StructLayout(System.Runtime.InteropServices.LayoutKind.Sequential)]
+    public struct HIDP_BUTTON_CAPS_RANGE
+    {
+
+        /// USAGE->USHORT->unsigned short
+        public ushort UsageMin;
+
+        /// USAGE->USHORT->unsigned short
+        public ushort UsageMax;
+
+        /// USHORT->unsigned short
+        public ushort StringMin;
+
+        /// USHORT->unsigned short
+        public ushort StringMax;
+
+        /// USHORT->unsigned short
+        public ushort DesignatorMin;
+
+        /// USHORT->unsigned short
+        public ushort DesignatorMax;
+
+        /// USHORT->unsigned short
+        public ushort DataIndexMin;
+
+        /// USHORT->unsigned short
+        public ushort DataIndexMax;
+    }
+
+    /// <summary>
+    /// Type created in place of an anonymous struct
+    /// </summary>
+    [StructLayout(System.Runtime.InteropServices.LayoutKind.Sequential)]
+    public struct HIDP_BUTTON_CAPS_NOT_RANGE
+    {
+
+        /// USAGE->USHORT->unsigned short
+        public ushort Usage;
+
+        /// USAGE->USHORT->unsigned short
+        public ushort Reserved1;
+
+        /// USHORT->unsigned short
+        public ushort StringIndex;
+
+        /// USHORT->unsigned short
+        public ushort Reserved2;
+
+        /// USHORT->unsigned short
+        public ushort DesignatorIndex;
+
+        /// USHORT->unsigned short
+        public ushort Reserved3;
+
+        /// USHORT->unsigned short
+        public ushort DataIndex;
+
+        /// USHORT->unsigned short
+        public ushort Reserved4;
+    }
+
+    /// <summary>
+    /// 
+    /// </summary>
+    [StructLayout(LayoutKind.Explicit, Pack = 1)]
+    public struct HIDP_BUTTON_CAPS
+    {
+        /// USAGE->USHORT->unsigned short
+        [FieldOffset(0)]
+        public ushort UsagePage;
+
+        /// UCHAR->unsigned char
+        [FieldOffset(2)]
+        public byte ReportID;
+
+        /// BOOLEAN->BYTE->unsigned char
+        [FieldOffset(3)]
+        [MarshalAs(UnmanagedType.U1)]
+        public bool IsAlias;
+
+        /// USHORT->unsigned short
+        [FieldOffset(4)]
+        public ushort BitField;
+
+        /// USHORT->unsigned short
+        [FieldOffset(6)]
+        public ushort LinkCollection;
+
+        /// USAGE->USHORT->unsigned short
+        [FieldOffset(8)]
+        public ushort LinkUsage;
+
+        /// USAGE->USHORT->unsigned short
+        [FieldOffset(10)]
+        public ushort LinkUsagePage;
+
+        /// BOOLEAN->BYTE->unsigned char
+        [FieldOffset(12)]
+        [MarshalAs(UnmanagedType.U1)]
+        public bool IsRange;
+
+        /// BOOLEAN->BYTE->unsigned char
+        [FieldOffset(13)]
+        [MarshalAs(UnmanagedType.U1)]
+        public bool IsStringRange;
+
+        /// BOOLEAN->BYTE->unsigned char
+        [FieldOffset(14)]
+        [MarshalAs(UnmanagedType.U1)]
+        public bool IsDesignatorRange;
+
+        /// BOOLEAN->BYTE->unsigned char
+        [FieldOffset(15)]
+        [MarshalAs(UnmanagedType.U1)]
+        public bool IsAbsolute;
+
+        /// ULONG[10]
+        [FieldOffset(16)]
+        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 10, ArraySubType = UnmanagedType.U4)]
+        public uint[] Reserved;
+
+        /// Union Range/NotRange
+        [FieldOffset(56)]
+        public HIDP_BUTTON_CAPS_RANGE Range;
+
+        [FieldOffset(56)]
+        public HIDP_BUTTON_CAPS_NOT_RANGE NotRange;       
+    }
+
+    /// <summary>
+    /// Type created in place of an anonymous struct
+    /// </summary>
+    [StructLayout(System.Runtime.InteropServices.LayoutKind.Sequential)]
+    public struct HIDP_VALUE_CAPS_RANGE
+    {
+
+        /// USAGE->USHORT->unsigned short
+        public ushort UsageMin;
+
+        /// USAGE->USHORT->unsigned short
+        public ushort UsageMax;
+
+        /// USHORT->unsigned short
+        public ushort StringMin;
+
+        /// USHORT->unsigned short
+        public ushort StringMax;
+
+        /// USHORT->unsigned short
+        public ushort DesignatorMin;
+
+        /// USHORT->unsigned short
+        public ushort DesignatorMax;
+
+        /// USHORT->unsigned short
+        public ushort DataIndexMin;
+
+        /// USHORT->unsigned short
+        public ushort DataIndexMax;
+    }
+
+    /// <summary>
+    /// Type created in place of an anonymous struct
+    /// </summary>
+    [StructLayout(System.Runtime.InteropServices.LayoutKind.Sequential)]
+    public struct HIDP_VALUE_CAPS_NOT_RANGE
+    {
+
+        /// USAGE->USHORT->unsigned short
+        public ushort Usage;
+
+        /// USAGE->USHORT->unsigned short
+        public ushort Reserved1;
+
+        /// USHORT->unsigned short
+        public ushort StringIndex;
+
+        /// USHORT->unsigned short
+        public ushort Reserved2;
+
+        /// USHORT->unsigned short
+        public ushort DesignatorIndex;
+
+        /// USHORT->unsigned short
+        public ushort Reserved3;
+
+        /// USHORT->unsigned short
+        public ushort DataIndex;
+
+        /// USHORT->unsigned short
+        public ushort Reserved4;
+    }
+
+
+    /// <summary>
+    /// 
+    /// </summary>
+    [StructLayout(LayoutKind.Explicit, Pack = 1)]
+    public struct HIDP_VALUE_CAPS
+    {
+
+        /// USAGE->USHORT->unsigned short
+        [FieldOffset(0)]
+        public ushort UsagePage;
+
+        /// UCHAR->unsigned char
+        [FieldOffset(2)]
+        public byte ReportID;
+
+        /// BOOLEAN->BYTE->unsigned char
+        [FieldOffset(3)]
+        [MarshalAs(UnmanagedType.U1)]
+        public bool IsAlias;
+
+        /// USHORT->unsigned short
+        [FieldOffset(4)]
+        public ushort BitField;
+
+        /// USHORT->unsigned short
+        [FieldOffset(6)]
+        public ushort LinkCollection;
+
+        /// USAGE->USHORT->unsigned short
+        [FieldOffset(8)]
+        public ushort LinkUsage;
+
+        /// USAGE->USHORT->unsigned short
+        [FieldOffset(10)]
+        public ushort LinkUsagePage;
+
+        /// BOOLEAN->BYTE->unsigned char
+        [FieldOffset(12)]
+        [MarshalAs(UnmanagedType.U1)]
+        public bool IsRange;
+
+        /// BOOLEAN->BYTE->unsigned char
+        [FieldOffset(13)]
+        [MarshalAs(UnmanagedType.U1)]
+        public bool IsStringRange;
+
+        /// BOOLEAN->BYTE->unsigned char
+        [FieldOffset(14)]
+        [MarshalAs(UnmanagedType.U1)]
+        public bool IsDesignatorRange;
+
+        /// BOOLEAN->BYTE->unsigned char
+        [FieldOffset(15)]
+        [MarshalAs(UnmanagedType.U1)]
+        public bool IsAbsolute;
+
+        /// BOOLEAN->BYTE->unsigned char
+        [FieldOffset(16)]
+        [MarshalAs(UnmanagedType.U1)]
+        public bool HasNull;
+
+        /// UCHAR->unsigned char
+        [FieldOffset(17)]
+        public byte Reserved;
+
+        /// USHORT->unsigned short
+        [FieldOffset(18)]
+        public ushort BitSize;
+
+        /// USHORT->unsigned short
+        [FieldOffset(20)]
+        public ushort ReportCount;
+
+        /// USHORT[5]
+        /// We had to use 5 ushorts instead of an array to avoid alignment exception issues.
+        [FieldOffset(22)]
+        public ushort Reserved21;
+        [FieldOffset(24)]
+        public ushort Reserved22;
+        [FieldOffset(26)]
+        public ushort Reserved23;
+        [FieldOffset(28)]
+        public ushort Reserved24;
+        [FieldOffset(30)]
+        public ushort Reserved25;
+
+        /// ULONG->unsigned int
+        [FieldOffset(32)]
+        public uint UnitsExp;
+
+        /// ULONG->unsigned int
+        [FieldOffset(36)]
+        public uint Units;
+
+        /// LONG->int
+        [FieldOffset(40)]
+        public int LogicalMin;
+
+        /// LONG->int
+        [FieldOffset(44)]
+        public int LogicalMax;
+
+        /// LONG->int
+        [FieldOffset(48)]
+        public int PhysicalMin;
+
+        /// LONG->int
+        [FieldOffset(52)]
+        public int PhysicalMax;
+
+        /// Union Range/NotRange
+        [FieldOffset(56)]
+        public HIDP_VALUE_CAPS_RANGE Range;
+
+        [FieldOffset(56)]
+        public HIDP_VALUE_CAPS_NOT_RANGE NotRange;
+    }
+    
+}
+
+