public int EnumerateDevices()
{
List<string> hardwareIds = new List<string>() { this.hardwareId };
int NumberOfDevices = 0;
uint deviceCount = 0;
int dwSize = (Marshal.SizeOf(typeof(RAWINPUTDEVICELIST)));
if (GetRawInputDeviceList(IntPtr.Zero, ref deviceCount, (uint)dwSize) == 0)
{
IntPtr pRawInputDeviceList = Marshal.AllocHGlobal((int)(dwSize * deviceCount));
GetRawInputDeviceList(pRawInputDeviceList, ref deviceCount, (uint)dwSize);
for (int i = 0; i < deviceCount; i++)
{
DeviceInfo dInfo;
string deviceName;
uint pcbSize = 0;
RAWINPUTDEVICELIST rid = (RAWINPUTDEVICELIST)Marshal.PtrToStructure(
new IntPtr((pRawInputDeviceList.ToInt32() + (dwSize * i))),
typeof(RAWINPUTDEVICELIST));
GetRawInputDeviceInfo(rid.hDevice, RIDI_DEVICENAME, IntPtr.Zero, ref pcbSize);
if (pcbSize > 0)
{
IntPtr pData = Marshal.AllocHGlobal((int)pcbSize);
GetRawInputDeviceInfo(rid.hDevice, RIDI_DEVICENAME, pData, ref pcbSize);
deviceName = (string)Marshal.PtrToStringAnsi(pData);
if (rid.dwType == RIM_TYPEKEYBOARD || rid.dwType == RIM_TYPEHID)
{
foreach (var hardwareId in hardwareIds)
{
var deviceNameTemp = deviceName.ToUpper();
var hardwareIdTemp = hardwareId.ToUpper();
if (deviceNameTemp.Contains(hardwareIdTemp))
{
dInfo = new DeviceInfo();
dInfo.deviceName = deviceName;
dInfo.deviceHandle = rid.hDevice;
dInfo.deviceType = GetDeviceType(rid.dwType);
bool IsKeyboardDevice = false;
string DeviceDesc = ReadReg(deviceName, ref IsKeyboardDevice);
dInfo.Name = DeviceDesc;
NumberOfDevices++;
deviceList.Add(rid.hDevice, dInfo);
}
}
}
if (deviceName.ToUpper().Contains("ROOT"))
{
continue;
}
Marshal.FreeHGlobal(pData);
}
}
Marshal.FreeHGlobal(pRawInputDeviceList);
return NumberOfDevices;
}
else
{
throw new ApplicationException("An error occurred while retrieving the list of devices.");
}
}
public KeyControlEventArgs(DeviceInfo dInfo, DeviceType device)
{
m_deviceInfo = dInfo;
m_device = device;
}
