public static string GetDeviceDiagnostics()
{
var stringBuilder = new StringBuilder();
uint devices = 0u;
int listSize = Marshal.SizeOf(typeof(RawInputDeviceList));
if (GetRawInputDeviceList(IntPtr.Zero, ref devices, (uint)listSize) != 0u)
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
var deviceListPtr = Marshal.AllocHGlobal((int)(listSize * devices));
try
{
GetRawInputDeviceList(deviceListPtr, ref devices, (uint)listSize);
int index = 0;
while (index < devices)
{
uint pcbSize = 0u;
var rawInputDeviceList = (RawInputDeviceList)Marshal.PtrToStructure(new IntPtr(deviceListPtr.ToInt64() + listSize * index), typeof(RawInputDeviceList));
GetRawInputDeviceInfo(rawInputDeviceList.hDevice, RawInputDeviceInfo.RIDI_DEVICENAME, IntPtr.Zero, ref pcbSize);
if (pcbSize <= 0u)
{
stringBuilder.AppendLine("pcbSize: " + pcbSize);
stringBuilder.AppendLine(Marshal.GetLastWin32Error().ToString());
string result = stringBuilder.ToString();
return(result);
}
var deviceInfoSize = (uint)Marshal.SizeOf(typeof(DeviceInfo));
var deviceInfo = new DeviceInfo
{
Size = Marshal.SizeOf(typeof(DeviceInfo))
};
if (GetRawInputDeviceInfo(rawInputDeviceList.hDevice, 536870923u, ref deviceInfo, ref deviceInfoSize) <= 0u)
{
stringBuilder.AppendLine(Marshal.GetLastWin32Error().ToString());
string result = stringBuilder.ToString();
return(result);
}
var deviceInfoPtr = Marshal.AllocHGlobal((int)pcbSize);
try
{
GetRawInputDeviceInfo(rawInputDeviceList.hDevice, RawInputDeviceInfo.RIDI_DEVICENAME, deviceInfoPtr,
ref pcbSize);
string device = Marshal.PtrToStringAnsi(deviceInfoPtr);
if (rawInputDeviceList.dwType == DeviceType.RimTypekeyboard ||
rawInputDeviceList.dwType == DeviceType.RimTypeHid)
{
string deviceDescription = GetDeviceDescription(device);
var rawKeyboardDevice = new RawKeyboardDevice(Marshal.PtrToStringAnsi(deviceInfoPtr),
(RawDeviceType)rawInputDeviceList.dwType, rawInputDeviceList.hDevice, deviceDescription);
stringBuilder.AppendLine(rawKeyboardDevice.ToString());
stringBuilder.AppendLine(deviceInfo.ToString());
stringBuilder.AppendLine(deviceInfo.KeyboardInfo.ToString());
stringBuilder.AppendLine(deviceInfo.HIDInfo.ToString());
}
}
finally
{
Marshal.FreeHGlobal(deviceInfoPtr);
}
index++;
}
}
finally
{
Marshal.FreeHGlobal(deviceListPtr);
}
return(stringBuilder.ToString());
}
public static extern uint GetRawInputDeviceInfo(IntPtr hDevice, uint command, ref DeviceInfo data,
ref uint dataSize);