private string getFirmwareVersion(string deviceInstanceId)
{
var biometricClassGuid = "53D29EF7-377C-4D14-864B-EB3A85769359";
Guid FPguid = new Guid(biometricClassGuid);
IntPtr h = SetupAPI.SetupDiGetClassDevs(
ref FPguid,
IntPtr.Zero,
IntPtr.Zero,
SetupAPI.DiGetClassFlags.DIGCF_PRESENT
);
if (h == (IntPtr)0)
{
return("");
}
SetupAPI.SP_DEVINFO_DATA dia = new SetupAPI.SP_DEVINFO_DATA();
dia.cbSize = Marshal.SizeOf(dia);
for (int i = 0; SetupAPI.SetupDiEnumDeviceInfo(h, i, ref dia); ++i)
{
UInt32 RequiredSize = 0;
StringBuilder sb = new StringBuilder(1024);
if (!SetupAPI.SetupDiGetDeviceInstanceId(h, ref dia, sb, 1024, out RequiredSize))
{
continue;
}
if (!deviceInstanceId.Equals(sb.ToString()))
{
continue;
}
UInt32 RegType;
if (!SetupAPI.SetupDiGetDeviceRegistryProperty(h, ref dia, SetupAPI.RegPropertyType.SPDRP_HARDWAREID, out RegType, sb, 1024, out RequiredSize))
{
continue;
}
int pos = sb.ToString().IndexOf("REV_");
if (pos <= 0)
{
break;
}
pos += "REV_".Length;
string s_toReturn = sb.ToString().Substring(pos, 4);
SetupAPI.SetupDiDestroyDeviceInfoList(h);
return(s_toReturn);
}
return("");
}
private void updateCurNameFromIdentity()
{
StringBuilder name = new StringBuilder();
uint cchName = (uint)name.Capacity;
StringBuilder referencedDomainName = new StringBuilder();
uint cchReferencedDomainName = (uint)referencedDomainName.Capacity;
SetupAPI.SID_NAME_USE sidUse;
// Sid for BUILTIN\Administrators
byte[] Sid = new byte[_identity.AccountSidSize];
_identity.AccountSid.GetBinaryForm(Sid, 0);
if (!SetupAPI.LookupAccountSid(null, Sid, name, ref cchName, referencedDomainName, ref cchReferencedDomainName, out sidUse))
{
_name = "";
}
else
{
_name = name.ToString();
}
}