public static void EnumDevicesCallback(
Native.DeviceInfoListHandle devs, ref Native.SP_DEVINFO_DATA devInfo,
string deviceId, Parameters parms
)
{
// For each device, enumerate its device interfaces that are of type Volume
Native.EnumerateDeviceInterfaces(
devs, ref devInfo, ref DEVINTERFACE_VOLUME, EnumInterfacesCallback, parms
);
}
public static void DoEnableDisable(
Native.DeviceInfoListHandle devs, ref Native.SP_DEVINFO_DATA devInfo,
string deviceId, EnableDisableParameters parms
)
{
if (devInfo.ClassGuid != parms.ClassGuid)
{
return;
}
if (devInfo.DevInst != parms.DevInst)
{
return;
}
var options = parms.AppParams.Options;
if ((options.Count == 0) || options.Contains("disable"))
{
Console.WriteLine(
"// Physical ID for volume {0} is #{1}. You can use this ID to re-enable the volume.",
parms.DriveLetter, devInfo.DevInst
);
Console.Write("Disabling volume {0}... ", parms.DriveLetter);
try {
Native.ChangeDeviceEnabledState(
devs, ref devInfo,
DiClassInstallState.DICS_DISABLE,
DiClassInstallScope.DICS_FLAG_CONFIGSPECIFIC,
DiClassInstallFunction.DIF_PROPERTYCHANGE
);
Console.WriteLine("ok.");
} catch (Exception ex) {
Console.WriteLine("failed.");
}
}
if ((options.Count == 0) || options.Contains("enable"))
{
Console.Write("Enabling volume {0}... ", parms.DriveLetter);
try {
Native.ChangeDeviceEnabledState(
devs, ref devInfo,
DiClassInstallState.DICS_ENABLE,
DiClassInstallScope.DICS_FLAG_CONFIGSPECIFIC,
DiClassInstallFunction.DIF_PROPERTYCHANGE
);
Console.WriteLine("ok.");
} catch (Exception ex) {
Console.WriteLine("failed.");
}
}
}
public static void EnumInterfacesCallback(
Native.DeviceInfoListHandle devs, ref Native.SP_DEVINFO_DATA devInfo,
ref Native.SP_DEVICE_INTERFACE_DATA interfaceData,
string devicePath, Parameters appParams
)
{
// We've got a device interface of type Volume. See if it matches either of our selection criteria
var parms = new EnableDisableParameters {
ClassGuid = devInfo.ClassGuid,
DevInst = devInfo.DevInst,
AppParams = appParams
};
if (appParams.InstanceIDs.Contains(devInfo.DevInst))
{
parms.DriveLetter = String.Format("#{0}", devInfo.DevInst);
}
else
{
DeviceNumber devNumber;
Exception failureReason;
if (!GetDeviceNumber(devicePath, out devNumber, out failureReason))
{
return;
}
string driveLetter;
if (!appParams.DriveLetters.TryGetValue(devNumber, out driveLetter))
{
return;
}
appParams.DriveLetters.Remove(devNumber);
parms.DriveLetter = driveLetter;
}
Native.EnumerateDevices(
null, DiGetClassFlags.DIGCF_ALLCLASSES,
null, DoEnableDisable, parms
);
}
