private static void SearchWiiController(WiiControllerFoundDelegate wiiControllerFound, ControllerType controllerType, bool breakIfFoundOne = false)
{
int index = 0;
bool found = false;
Guid guid;
SafeFileHandle handle;
// get the GUID of the HID class
HIDImports.HidD_GetHidGuid(out guid);
// get a handle to all devices that are part of the HID class
// Fun fact: DIGCF_PRESENT worked on my machine just fine. I reinstalled Vista, and now it no longer finds the WiiController with that parameter enabled...
IntPtr hDevInfo = HIDImports.SetupDiGetClassDevs(ref guid, null, IntPtr.Zero, HIDImports.DIGCF_DEVICEINTERFACE);// | HIDImports.DIGCF_PRESENT);
// create a new interface data struct and initialize its size
HIDImports.SP_DEVICE_INTERFACE_DATA diData = new HIDImports.SP_DEVICE_INTERFACE_DATA();
diData.cbSize = Marshal.SizeOf(diData);
// get a device interface to a single device (enumerate all devices)
while (HIDImports.SetupDiEnumDeviceInterfaces(hDevInfo, IntPtr.Zero, ref guid, index, ref diData))
{
UInt32 size;
// get the buffer size for this device detail instance (returned in the size parameter)
HIDImports.SetupDiGetDeviceInterfaceDetail(hDevInfo, ref diData, IntPtr.Zero, 0, out size, IntPtr.Zero);
// create a detail struct and set its size
HIDImports.SP_DEVICE_INTERFACE_DETAIL_DATA diDetail = new HIDImports.SP_DEVICE_INTERFACE_DETAIL_DATA();
// on Win x86, cbSize must be 5 for some reason. On x64, apparently 8 is what it wants.
diDetail.cbSize = (uint)(IntPtr.Size == 8 ? 8 : 5);
// actually get the detail struct
if (HIDImports.SetupDiGetDeviceInterfaceDetail(hDevInfo, ref diData, ref diDetail, size, out size, IntPtr.Zero))
{
Debug.WriteLine(string.Format("{0}: {1} - {2}", index, diDetail.DevicePath, Marshal.GetLastWin32Error()));
// open a read/write handle to our device using the DevicePath returned
bool closeHandle = true;
handle = HIDImports.CreateFile(diDetail.DevicePath, FileAccess.ReadWrite, FileShare.ReadWrite, IntPtr.Zero, FileMode.Open, HIDImports.EFileAttributes.Overlapped, IntPtr.Zero);
// create an attributes struct and initialize the size
HIDImports.HIDD_ATTRIBUTES attrib = new HIDImports.HIDD_ATTRIBUTES();
attrib.Size = Marshal.SizeOf(attrib);
// get the attributes of the current device
if (HIDImports.HidD_GetAttributes(handle.DangerousGetHandle(), ref attrib))
{
// if the vendor and product IDs match up
if (attrib.VendorID == WiiInputManager.VID)
{
if (attrib.ProductID == WiiInputManager.PID_old || attrib.ProductID == WiiInputManager.PID_new)
{
found = CheckWiiControllerType(handle, controllerType, diDetail, wiiControllerFound);
if (found)
{
// it's the right WiiController
Debug.WriteLine("Found one and open!");
}
// stop at first found
if (breakIfFoundOne)
{
break;
}
// dont close the handle
closeHandle = false;
}
}
}
if (closeHandle)
{
handle.Close();
}
}
else
{
// failed to get the detail struct
throw new WiiControllerException("SetupDiGetDeviceInterfaceDetail failed on index " + index);
}
// move to the next device
index++;
}
// clean up our list
HIDImports.SetupDiDestroyDeviceInfoList(hDevInfo);
// if we didn't find a WiiController, throw an exception
if (!found)
{
throw new WiiControllerNotFoundException("No WiiControllers found in HID device list.");
}
}
private static bool CheckWiiControllerType(SafeFileHandle handle, ControllerType controllerType, HIDImports.SP_DEVICE_INTERFACE_DETAIL_DATA diDetail, WiiControllerFoundDelegate wiiControllerFound)
{
// Get ProductName
string product = string.Empty;
byte[] productBuff = new byte[128];
// attempt to read the serial number string
if (HIDImports.HidD_GetProductString(handle.DangerousGetHandle(), productBuff, productBuff.Length))
{
// convert from unicode to the default encoding
product = Encoding.Default.GetString(Encoding.Convert(Encoding.Unicode, Encoding.Default, productBuff));
}
// Trim the string down by removing any '\0' characters
product = product.Remove(product.IndexOf('\0'));
switch (controllerType)
{
case ControllerType.WiiBalanceBoard:
if (product == WBBName_new || product == WBBName_old)
{
if (wiiControllerFound != null)
{
wiiControllerFound(diDetail.DevicePath, controllerType);
}
return(true);
}
break;
default:
break;
}
return(false);
}
