|
private SetupDiDestroyDeviceInfoList ( |
||
| deviceInfoSet | ||
| return | int | |
private bool TryReEnableDevice(string deviceInstanceId)
{
try
{
bool success;
Guid hidGuid = new Guid();
NativeMethods.HidD_GetHidGuid(ref hidGuid);
IntPtr deviceInfoSet = NativeMethods.SetupDiGetClassDevs(ref hidGuid, deviceInstanceId, 0,
NativeMethods.DIGCF_PRESENT | NativeMethods.DIGCF_DEVICEINTERFACE);
NativeMethods.SP_DEVINFO_DATA deviceInfoData = new NativeMethods.SP_DEVINFO_DATA();
deviceInfoData.cbSize = Marshal.SizeOf(deviceInfoData);
success = NativeMethods.SetupDiEnumDeviceInfo(deviceInfoSet, 0, ref deviceInfoData);
success = NativeMethods.SetupDiEnumDeviceInfo(deviceInfoSet, 1,
ref deviceInfoData); // Checks that we have a unique device
NativeMethods.SP_PROPCHANGE_PARAMS propChangeParams = new NativeMethods.SP_PROPCHANGE_PARAMS();
propChangeParams.classInstallHeader.cbSize = Marshal.SizeOf(propChangeParams.classInstallHeader);
propChangeParams.classInstallHeader.installFunction = NativeMethods.DIF_PROPERTYCHANGE;
propChangeParams.stateChange = NativeMethods.DICS_DISABLE;
propChangeParams.scope = NativeMethods.DICS_FLAG_GLOBAL;
propChangeParams.hwProfile = 0;
success = NativeMethods.SetupDiSetClassInstallParams(deviceInfoSet, ref deviceInfoData,
ref propChangeParams, Marshal.SizeOf(propChangeParams));
if (!success)
{
return(false);
}
success = NativeMethods.SetupDiCallClassInstaller(NativeMethods.DIF_PROPERTYCHANGE, deviceInfoSet,
ref deviceInfoData);
if (!success)
{
return(false);
}
propChangeParams.stateChange = NativeMethods.DICS_ENABLE;
success = NativeMethods.SetupDiSetClassInstallParams(deviceInfoSet, ref deviceInfoData,
ref propChangeParams, Marshal.SizeOf(propChangeParams));
if (!success)
{
return(false);
}
success = NativeMethods.SetupDiCallClassInstaller(NativeMethods.DIF_PROPERTYCHANGE, deviceInfoSet,
ref deviceInfoData);
if (!success)
{
return(false);
}
NativeMethods.SetupDiDestroyDeviceInfoList(deviceInfoSet);
return(true);
}
catch
{
return(false);
}
}
private static IEnumerable <string> EnumerateHidDevices()
{
var hidClass = HidClassGuid;
var deviceInfoSet = NativeMethods.SetupDiGetClassDevs(ref hidClass, null, 0, NativeMethods.DIGCF_PRESENT | NativeMethods.DIGCF_DEVICEINTERFACE);
if (deviceInfoSet.ToInt64() != NativeMethods.INVALID_HANDLE_VALUE)
{
var devices = new List <string>();
var deviceInfoData = CreateDeviceInfoData();
var deviceIndex = 0;
while (NativeMethods.SetupDiEnumDeviceInfo(deviceInfoSet, deviceIndex, ref deviceInfoData))
{
deviceIndex += 1;
var deviceInterfaceData = new NativeMethods.SP_DEVICE_INTERFACE_DATA();
deviceInterfaceData.cbSize = Marshal.SizeOf(deviceInterfaceData);
var deviceInterfaceIndex = 0;
while (NativeMethods.SetupDiEnumDeviceInterfaces(deviceInfoSet, 0, ref hidClass, deviceInterfaceIndex, ref deviceInterfaceData))
{
deviceInterfaceIndex++;
var devicePath = GetDevicePath(deviceInfoSet, deviceInterfaceData);
if (devices.Any(x => x == devicePath))
{
continue;
}
devices.Add(devicePath);
}
}
NativeMethods.SetupDiDestroyDeviceInfoList(deviceInfoSet);
foreach (string devicePath in devices)
{
yield return(devicePath);
}
}
}
