static NativePlugAndPlayHelper.DeviceInfoData[] GetDeviceInfoData(NativePlugAndPlayHelper.SafeDeviceInfoSetHandle handle)
{
List <NativePlugAndPlayHelper.DeviceInfoData> data = new List <NativePlugAndPlayHelper.DeviceInfoData>();
NativePlugAndPlayHelper.DeviceInfoData did = new NativePlugAndPlayHelper.DeviceInfoData();
int didSize = Marshal.SizeOf(did);
did.Size = didSize;
int index = 0;
while (NativePlugAndPlayHelper.SetupDiEnumDeviceInfo(handle, index, ref did))
{
data.Add(did);
index += 1;
did = new NativePlugAndPlayHelper.DeviceInfoData();
did.Size = didSize;
}
return(data.ToArray());
}
// enable/disable...
static void EnableDevice(NativePlugAndPlayHelper.SafeDeviceInfoSetHandle handle, NativePlugAndPlayHelper.DeviceInfoData diData, bool enable)
{
NativePlugAndPlayHelper.PropertyChangeParameters pars = new NativePlugAndPlayHelper.PropertyChangeParameters();
// The size is just the size of the header, but we've flattened the structure.
// The header comprises the first two fields, both integer.
pars.Size = 8;
pars.DiFunction = NativePlugAndPlayHelper.DiFunction.PropertyChange;
pars.Scope = NativePlugAndPlayHelper.Scopes.Global;
if (enable)
{
pars.StateChange = NativePlugAndPlayHelper.StateChangeAction.Enable;
}
else
{
pars.StateChange = NativePlugAndPlayHelper.StateChangeAction.Disable;
}
bool result = NativePlugAndPlayHelper.SetupDiSetClassInstallParams(handle, ref diData, ref pars, Marshal.SizeOf(pars));
if (result == false)
{
throw new Win32Exception();
}
result = NativePlugAndPlayHelper.SetupDiCallClassInstaller(NativePlugAndPlayHelper.DiFunction.PropertyChange, handle, ref diData);
if (result == false)
{
int err = Marshal.GetLastWin32Error();
if (err == (int)NativePlugAndPlayHelper.SetupApiError.NotDisableable)
{
throw new ArgumentException("Device can't be disabled (programmatically or in Device Manager).");
}
else if (err >= (int)NativePlugAndPlayHelper.SetupApiError.NoAssociatedClass && err <= (int)NativePlugAndPlayHelper.SetupApiError.OnlyValidateViaAuthenticode)
{
throw new Win32Exception("SetupAPI error: " + ((NativePlugAndPlayHelper.SetupApiError)err).ToString());
}
else
{
throw new Win32Exception();
}
}
}
