public static void Remove(string HardwareId)
{
IntPtr DeviceInfoSet = SetupDiGetClassDevs(IntPtr.Zero, IntPtr.Zero, IntPtr.Zero, (uint)DiGetClassFlags.DIGCF_ALLCLASSES);
if (DeviceInfoSet == INVALID_HANDLE_VALUE) {
return;
}
uint index = 0;
SP_DEVINFO_DATA DeviceInfoData = new SP_DEVINFO_DATA();
const uint BUFFER_SIZE = 4096;
ushort[] buffer = new ushort[BUFFER_SIZE];
DeviceInfoData.cbSize = (uint) Marshal.SizeOf(DeviceInfoData);
while (SetupDiEnumDeviceInfo(DeviceInfoSet, index, ref DeviceInfoData))
{
index++;
SetupDiGetDeviceRegistryProperty(DeviceInfoSet,
ref DeviceInfoData,
SetupDiGetDeviceRegistryPropertyEnum.SPDRP_HARDWAREID,
IntPtr.Zero,
buffer,
BUFFER_SIZE*2,
IntPtr.Zero);
int start = 0;
int offset = 0;
while (start < buffer.Length)
{
while ((offset < buffer.Length) && (buffer[offset] != 0))
{
offset++;
}
if (offset < buffer.Length)
{
if (start == offset)
break;
byte[] block = new byte[(offset - start + 1) * 2];
Buffer.BlockCopy(buffer, (int)(start * 2), block, 0, (int)((offset - start + 1) * 2));
string id = System.Text.Encoding.Unicode.GetString(block, 0, (offset - start) * 2);
Trace.WriteLine("Examinining id " + id.ToUpper() +" vs "+HardwareId.ToUpper());
if (id.ToUpper().Equals(HardwareId.ToUpper()))
{
Trace.WriteLine("Trying to remove "+HardwareId.ToUpper());
REMOVE_PARAMS rparams = new REMOVE_PARAMS();
rparams.cbSize = 8; // Size of cbSide & InstallFunction
rparams.InstallFunction = DIF_REMOVE;
rparams.HwProfile = 0;
rparams.Scope = DI_REMOVE_DEVICE_GLOBAL;
GCHandle handle1 = GCHandle.Alloc(rparams);
if (!SetupDiSetClassInstallParams(DeviceInfoSet, ref DeviceInfoData, ref rparams, Marshal.SizeOf(rparams)))
{
throw new Exception("Unable to set class install params");
}
if (!SetupDiCallClassInstaller(DIF_REMOVE, DeviceInfoSet, ref DeviceInfoData))
{
throw new Exception("Unable to call class installer");
}
Trace.WriteLine("Remove should have worked");
}
}
else
{
break;
}
offset++;
start = offset;
}
}
}
static extern bool SetupDiSetClassInstallParams(IntPtr DeviceInfoSet, ref SP_DEVINFO_DATA DeviceInfoData, ref REMOVE_PARAMS ClassInstallParams, int ClassInstallParamsSize);
