public RAWINPUTDEVICELIST[] GetAllHIDDevices()
{
IntPtr pnumdevices = Marshal.AllocHGlobal(Marshal.SizeOf <uint>());
try
{
uint retval = Win32Interop.GetRawInputDeviceList(IntPtr.Zero, pnumdevices,
(uint)Marshal.SizeOf <RAWINPUTDEVICELIST>());
if (retval == (uint)0xFFFFFFFF)
{
Win32Interop.GetLastErrorAndThrow();
}
var devicesNum = Marshal.PtrToStructure <uint>(pnumdevices);
var devices = new RAWINPUTDEVICELIST[devicesNum];
retval = Win32Interop.GetRawInputDeviceList(
Marshal.UnsafeAddrOfPinnedArrayElement(devices, 0),
pnumdevices,
(uint)Marshal.SizeOf <RAWINPUTDEVICELIST>());
if (retval == (uint)0xFFFFFFFF)
{
Win32Interop.GetLastErrorAndThrow();
}
return(devices);
}
finally
{
Marshal.FreeHGlobal(pnumdevices);
}
}
public SL600SDK CreateInstance()
{
lock (_syncObj)
{
if (_hModule == IntPtr.Zero)
{
_hModule = Win32Interop.LoadLibraryExW(_pathToDll, IntPtr.Zero, 0x00001000);
if (_hModule == IntPtr.Zero)
{
Win32Interop.GetLastErrorAndThrow();
}
}
if (_thread == null)
{
_thread = new DispathcedThread();
}
if (_functions == null)
{
_functions = new FunctionPointersContainer(_hModule);
}
var inst = new SL600SDK(_thread, _functions);
inst.Disposed += Inst_Disposed;
Interlocked.Increment(ref _refCounter);
return(inst);
}
}
private void Release()
{
lock (_syncObj)
{
_thread.Dispose();
_thread = null;
_functions = null;
Win32Interop.FreeLibrary(_hModule);
_hModule = IntPtr.Zero;
}
}
public string GetHIDDeviceName(RAWINPUTDEVICELIST device)
{
var strptr = Marshal.AllocHGlobal(255);
var pSize = Marshal.AllocHGlobal(Marshal.SizeOf <uint>());
Marshal.StructureToPtr((uint)255, pSize, false);
try
{
var retval = Win32Interop.GetRawInputDeviceInfoW(device.hDevice, 0x20000007, strptr, pSize);
if (retval == 0xFFFFFFFF)
{
Win32Interop.GetLastErrorAndThrow();
}
return(Marshal.PtrToStringUni(strptr));
}
finally
{
Marshal.FreeHGlobal(pSize);
Marshal.FreeHGlobal(strptr);
}
}
public RID_DEVICE_INFO GetHIDDeviceInfo(RAWINPUTDEVICELIST device)
{
var size = Marshal.SizeOf <RID_DEVICE_INFO>();
var infoStructPtr = Marshal.AllocHGlobal(size);
var pSize = Marshal.AllocHGlobal(Marshal.SizeOf <uint>());
Marshal.StructureToPtr(size, pSize, false);
try
{
var retval = Win32Interop.GetRawInputDeviceInfoW(device.hDevice, 0x2000000b, infoStructPtr, pSize);
if (retval == 0xFFFFFFFF)
{
Win32Interop.GetLastErrorAndThrow();
}
return(Marshal.PtrToStructure <RID_DEVICE_INFO>(infoStructPtr));
}
finally
{
Marshal.FreeHGlobal(pSize);
Marshal.FreeHGlobal(infoStructPtr);
}
}
public UnmanagedFunctionInfo GetFunctionAddress <T>(string name) where T : Delegate
{
if (FunctionPointers.ContainsKey(name))
{
return((UnmanagedFunctionInfo)FunctionPointers[name]);
}
var res = Win32Interop.GetProcAddress(ModulePtr, name);
if (res == IntPtr.Zero)
{
Win32Interop.GetLastErrorAndThrow();
}
var info = new UnmanagedFunctionInfo
{
FunctionDelegate = Marshal.GetDelegateForFunctionPointer <T>(res),
Pointer = res
};
FunctionPointers.Add(name, info);
return(info);
}
