# HG changeset patch
# User StephaneLenclud
# Date 1423997616 -3600
# Node ID cace0afae0fa4c7b07977f1ab069a03e216f94d6
# Parent  08c70af8af84956d23bee33f1cd3738aee08abc4
HidDevice now supports capabilities and button capabilities.

diff -r 08c70af8af84 -r cace0afae0fa HidDevice.cs
--- a/HidDevice.cs	Sun Feb 15 10:50:09 2015 +0100
+++ b/HidDevice.cs	Sun Feb 15 11:53:36 2015 +0100
@@ -19,9 +19,18 @@
         public ushort VendorId { get; private set; }
         public ushort ProductId { get; private set; }
         public ushort Version { get; private set; }
+        //Pre-parsed HID descriptor
         public IntPtr PreParsedData {get; private set;}
+        //Info
         public RID_DEVICE_INFO Info { get {return iInfo;} }
         private RID_DEVICE_INFO iInfo;
+        //Capabilities
+        public HIDP_CAPS Capabilities { get { return iCapabilities; } }
+        private HIDP_CAPS iCapabilities;
+        //Input Button Capabilities
+        public HIDP_BUTTON_CAPS[] InputButtonCapabilities { get { return iInputButtonCapabilities; } }
+        private HIDP_BUTTON_CAPS[] iInputButtonCapabilities;
+        
 
         /// <summary>
         /// Class constructor will fetch this object properties from HID sub system.
@@ -115,6 +124,24 @@
             }
 
             handle.Close();
+
+            //Get capabilities
+            HidStatus status = Win32.Function.HidP_GetCaps(PreParsedData, ref iCapabilities);
+            if (status != HidStatus.HIDP_STATUS_SUCCESS)
+            {
+                throw new Exception("HidDevice: HidP_GetCaps failed: " + status.ToString());
+            }
+
+            //Get input button caps
+            iInputButtonCapabilities = new HIDP_BUTTON_CAPS[Capabilities.NumberInputButtonCaps];
+            ushort buttonCapabilitiesLength = Capabilities.NumberInputButtonCaps;
+            status = Win32.Function.HidP_GetButtonCaps(HIDP_REPORT_TYPE.HidP_Input, iInputButtonCapabilities, ref buttonCapabilitiesLength, PreParsedData);
+            if (status != HidStatus.HIDP_STATUS_SUCCESS || buttonCapabilitiesLength != Capabilities.NumberInputButtonCaps)
+            {
+                throw new Exception("HidDevice: HidP_GetButtonCaps failed: " + status.ToString());
+            }
+            
+
         }
 
         /// <summary>
diff -r 08c70af8af84 -r cace0afae0fa Win32Hid.cs
--- a/Win32Hid.cs	Sun Feb 15 10:50:09 2015 +0100
+++ b/Win32Hid.cs	Sun Feb 15 11:53:36 2015 +0100
@@ -24,23 +24,23 @@
         ///PreparsedData: PHIDP_PREPARSED_DATA->_HIDP_PREPARSED_DATA*
         ///Capabilities: PHIDP_CAPS->_HIDP_CAPS*
         [DllImportAttribute("hid.dll", EntryPoint = "HidP_GetCaps", CallingConvention = CallingConvention.StdCall)]
-        public static extern int HidP_GetCaps(System.IntPtr PreparsedData, ref HIDP_CAPS Capabilities);
+        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*
-        [System.Runtime.InteropServices.DllImportAttribute("<Unknown>", EntryPoint = "HidP_GetButtonCaps", CallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall)]
-        public static extern int HidP_GetButtonCaps(HIDP_REPORT_TYPE ReportType, ref HIDP_BUTTON_CAPS ButtonCaps, ref ushort ButtonCapsLength, System.IntPtr PreparsedData);
+        [System.Runtime.InteropServices.DllImportAttribute("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*
-        [System.Runtime.InteropServices.DllImportAttribute("<Unknown>", EntryPoint = "HidP_GetValueCaps", CallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall)]
-        public static extern int HidP_GetValueCaps(HIDP_REPORT_TYPE ReportType, ref HIDP_VALUE_CAPS ValueCaps, ref ushort ValueCapsLength, System.IntPtr PreparsedData);
+        [System.Runtime.InteropServices.DllImportAttribute("hid.dll", EntryPoint = "HidP_GetValueCaps", CallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall)]
+        public static extern HidStatus HidP_GetValueCaps(HIDP_REPORT_TYPE ReportType, ref HIDP_VALUE_CAPS[] ValueCaps, ref ushort ValueCapsLength, System.IntPtr PreparsedData);
 
     }