public static void DestroyDeviceInfoList(IntPtr hDevInfo)
{
bool success = DeviceInterfaceUtils.SetupDiDestroyDeviceInfoList(hDevInfo);
if (!success)
{
int errorCode = Marshal.GetLastWin32Error();
string message = String.Format("Unable to destroy device info list, Win32 Error: {0}", errorCode);
throw new IOException(message);
}
}
public static List <int> GetPhysicalDiskIndexList()
{
List <string> devicePathList = DeviceInterfaceUtils.GetDevicePathList(DeviceInterfaceUtils.DiskClassGuid);
List <int> result = new List <int>();
foreach (string devicePath in devicePathList)
{
SafeFileHandle hDevice = HandleUtils.GetFileHandle(devicePath, FileAccess.Read, ShareMode.ReadWrite);
STORAGE_DEVICE_NUMBER number = GetDeviceNumber(hDevice);
hDevice.Close();
result.Add((int)number.DeviceNumber);
}
// We'll now sort the list based on disk number
result.Sort();
return(result);
}
// Great C++ Example of enumerating and locating specific attach storage devices:
// http://code.msdn.microsoft.com/windowshardware/CppStorageEnum-90ad5fa9
public static List <string> GetDevicePathList(Guid deviceClassGuid)
{
IntPtr hDevInfo = GetClassDevices(deviceClassGuid);
SP_DEVICE_INTERFACE_DATA deviceInterfaceData = new SP_DEVICE_INTERFACE_DATA();
deviceInterfaceData.cbSize = (uint)Marshal.SizeOf(typeof(SP_DEVICE_INTERFACE_DATA));
uint index = 0;
List <string> result = new List <string>();
while (true)
{
bool success = DeviceInterfaceUtils.SetupDiEnumDeviceInterfaces(hDevInfo, IntPtr.Zero, ref deviceClassGuid, index, ref deviceInterfaceData);
if (!success)
{
int errorCode = Marshal.GetLastWin32Error();
if (errorCode == (int)Win32Error.ERROR_NO_MORE_ITEMS)
{
break;
}
else
{
string message = String.Format("Unable to enumerate device interfaces, Win32 Error: {0}", errorCode);
throw new IOException(message);
}
}
SP_DEVICE_INTERFACE_DETAIL_DATA deviceInterfaceDetailData = DeviceInterfaceUtils.GetDeviceInterfaceDetail(hDevInfo, deviceInterfaceData);
result.Add(deviceInterfaceDetailData.DevicePath);
index++;
}
DestroyDeviceInfoList(hDevInfo);
return(result);
}
