public void SetEnabled(Boolean enabled)
{
using (SafeDeviceInfoSetHandle dis = SetupApi.SetupDiGetClassDevsA(IntPtr.Zero, DeviceID, IntPtr.Zero, DICFG.DEVICEINTERFACE | DICFG.ALLCLASSES)) {
if (dis.IsInvalid)
{
throw new Win32Exception();
}
SP_DEVINFO_DATA dd = new SP_DEVINFO_DATA(true);
if (!SetupApi.SetupDiEnumDeviceInfo(dis, 0, ref dd))
{
throw new Win32Exception();
}
SP_PROPCHANGE_PARAMS PropChangeParams = new SP_PROPCHANGE_PARAMS();
PropChangeParams.ClassInstallHeader.cbSize = Marshal.SizeOf(PropChangeParams.ClassInstallHeader);
PropChangeParams.ClassInstallHeader.InstallFunction = UsbApi.DIF_PROPERTYCHANGE;
PropChangeParams.Scope = UsbApi.DICS_FLAG_GLOBAL; // or use DICS_FLAG_CONFIGSPECIFIC to limit to current HW profile
PropChangeParams.HwProfile = 0; //Current hardware profile
PropChangeParams.StateChange = enabled ? UsbApi.DICS_ENABLE : UsbApi.DICS_DISABLE;
if (!SetupApi.SetupDiSetClassInstallParams(dis, ref dd, ref PropChangeParams.ClassInstallHeader, Marshal.SizeOf(PropChangeParams)))
{
throw new Win32Exception();
}
if (!SetupApi.SetupDiCallClassInstaller(UsbApi.DIF_PROPERTYCHANGE, dis, ref dd))
{
throw new Win32Exception();
}
}
}
public static bool RemoveFromSystem(
SetupApi.DeviceInfoSet devInfoSet,
string hwID,
bool strictSearch)
// WARNING: Removes ONLY the particular device
// instance referenced by 'devInfoSet'
{
SetupApi.SP_DEVINFO_DATA devInfoData;
devInfoData = FindInSystem(
hwID,
devInfoSet,
strictSearch
);
if (devInfoData == null)
{
return(false);
}
SetupApi.SP_REMOVEDEVICE_PARAMS rparams =
new SetupApi.SP_REMOVEDEVICE_PARAMS();
rparams.ClassInstallHeader.cbSize =
(uint)Marshal.SizeOf(rparams.ClassInstallHeader);
rparams.ClassInstallHeader.InstallFunction =
SetupApi.DI_FUNCTION.DIF_REMOVE;
rparams.HwProfile = 0;
rparams.Scope = SetupApi.DI_REMOVE_DEVICE_GLOBAL;
GCHandle handle1 = GCHandle.Alloc(rparams);
if (!SetupApi.SetupDiSetClassInstallParams(
devInfoSet.Get(),
devInfoData,
ref rparams,
Marshal.SizeOf(rparams)))
{
Win32Error.Set("SetupDiSetClassInstallParams");
throw new Exception(
Win32Error.GetFullErrMsg()
);
}
Trace.WriteLine(
"Removing device \'" + hwID +
"\' from system"
);
if (!SetupApi.SetupDiCallClassInstaller(
SetupApi.DI_FUNCTION.DIF_REMOVE,
devInfoSet.Get(),
devInfoData))
{
Win32Error.Set("SetupDiCallClassInstaller");
if (Win32Error.GetErrorNo() != WinError.ERROR_KEY_DOES_NOT_EXIST)
{
throw new Exception(
Win32Error.GetFullErrMsg()
);
}
}
Trace.WriteLine("Remove should have worked");
return(true);
}
private static void VifDisableEnable(bool enable)
{
string action = enable ? "enable" : "disable";
Trace.WriteLine("===> VifDisableEnable: \'" + action + "\'");
using (SetupApi.DeviceInfoSet devInfoSet =
new SetupApi.DeviceInfoSet(
IntPtr.Zero,
"XENVIF",
IntPtr.Zero,
SetupApi.DiGetClassFlags.DIGCF_PRESENT |
SetupApi.DiGetClassFlags.DIGCF_ALLCLASSES))
{
SetupApi.SP_DEVINFO_DATA devInfoData =
new SetupApi.SP_DEVINFO_DATA();
devInfoData.cbSize = (uint)Marshal.SizeOf(devInfoData);
for (uint i = 0;
SetupApi.SetupDiEnumDeviceInfo(
devInfoSet.Get(),
i,
devInfoData);
++i)
{
SetupApi.PropertyChangeParameters pcParams =
new SetupApi.PropertyChangeParameters();
pcParams.size = 8;
pcParams.diFunction = SetupApi.DI_FUNCTION.DIF_PROPERTYCHANGE;
pcParams.scope = SetupApi.Scopes.Global;
if (enable)
{
pcParams.stateChange = SetupApi.StateChangeAction.Enable;
}
else
{
pcParams.stateChange = SetupApi.StateChangeAction.Disable;
}
pcParams.hwProfile = 0;
var pinned = GCHandle.Alloc(pcParams, GCHandleType.Pinned);
byte[] temp = new byte[Marshal.SizeOf(pcParams)];
Marshal.Copy(
pinned.AddrOfPinnedObject(),
temp,
0,
Marshal.SizeOf(pcParams)
);
var pdd = GCHandle.Alloc(devInfoData, GCHandleType.Pinned);
if (!SetupApi.SetupDiSetClassInstallParams(
devInfoSet.Get(),
pdd.AddrOfPinnedObject(),
pinned.AddrOfPinnedObject(),
Marshal.SizeOf(pcParams)))
{
Win32Error.Set("SetupDiSetClassInstallParams");
Trace.WriteLine(Win32Error.GetFullErrMsg());
}
if (!SetupApi.SetupDiCallClassInstaller(
SetupApi.DI_FUNCTION.DIF_PROPERTYCHANGE,
devInfoSet.Get(),
pdd.AddrOfPinnedObject()))
{
Win32Error.Set("SetupDiCallClassInstaller");
Trace.WriteLine(Win32Error.GetFullErrMsg());
}
pdd.Free();
pinned.Free();
}
}
Trace.WriteLine("<=== VifDisableEnable");
}
