private static string GetDriverProperty(string searchHardwareId,
NativeMethods.DEVPROPKEY prop)
{
string result = "";
bool devmatch = false;
Guid sysGuid = Guid.Parse("{4d36e97d-e325-11ce-bfc1-08002be10318}");
NativeMethods.SP_DEVINFO_DATA deviceInfoData = new NativeMethods.SP_DEVINFO_DATA();
deviceInfoData.cbSize = System.Runtime.InteropServices.Marshal.SizeOf(deviceInfoData);
var dataBuffer = new byte[4096];
ulong propertyType = 0;
var requiredSize = 0;
//var type = 0;
IntPtr deviceInfoSet = NativeMethods.SetupDiGetClassDevs(ref sysGuid, null, 0, 0);
for (int i = 0; !devmatch && NativeMethods.SetupDiEnumDeviceInfo(deviceInfoSet, i, ref deviceInfoData); i++)
{
if (NativeMethods.SetupDiGetDeviceProperty(deviceInfoSet, ref deviceInfoData, ref NativeMethods.DEVPKEY_Device_HardwareIds, ref propertyType,
dataBuffer, dataBuffer.Length, ref requiredSize, 0))
{
string hardwareId = dataBuffer.ToUTF16String();
if (hardwareId.Equals(searchHardwareId))
{
devmatch = true;
}
}
}
if (devmatch)
{
if (NativeMethods.SetupDiGetDeviceProperty(deviceInfoSet, ref deviceInfoData, ref prop, ref propertyType,
dataBuffer, dataBuffer.Length, ref requiredSize, 0))
{
result = dataBuffer.ToUTF16String();
}
}
if (deviceInfoSet.ToInt64() != NativeMethods.INVALID_HANDLE_VALUE)
{
NativeMethods.SetupDiDestroyDeviceInfoList(deviceInfoSet);
}
return(result);
}
public static string HidGuardDevProp(NativeMethods.DEVPROPKEY prop)
{
return(GetDriverProperty(hidGuardDevicePath, prop));
}