|
private SetupDiGetClassDevs ( System &classGuid, string enumerator, int hwndParent, int flags ) : |
||
| classGuid | System | |
| enumerator | string | |
| hwndParent | int | |
| flags | int | |
| 리턴 | ||
private static IEnumerable <DeviceInfo> EnumerateDevices()
{
var devices = new List <DeviceInfo>();
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 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, ref deviceInfoData, ref hidClass, deviceInterfaceIndex, ref deviceInterfaceData))
{
deviceInterfaceIndex++;
var devicePath = GetDevicePath(deviceInfoSet, deviceInterfaceData);
var description = GetBusReportedDeviceDescription(deviceInfoSet, ref deviceInfoData) ??
GetDeviceDescription(deviceInfoSet, ref deviceInfoData);
devices.Add(new DeviceInfo {
Path = devicePath, Description = description
});
}
}
NativeMethods.SetupDiDestroyDeviceInfoList(deviceInfoSet);
}
return(devices);
}
public static void reEnableDevice(string deviceInstanceId)
{
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);
if (!success)
{
throw new Exception("Error getting device info data, error code = " + Marshal.GetLastWin32Error());
}
success = NativeMethods.SetupDiEnumDeviceInfo(deviceInfoSet, 1, ref deviceInfoData); // Checks that we have a unique device
if (success)
{
throw new Exception("Can't find 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)
{
throw new Exception("Error setting class install params, error code = " + Marshal.GetLastWin32Error());
}
success = NativeMethods.SetupDiCallClassInstaller(NativeMethods.DIF_PROPERTYCHANGE, deviceInfoSet, ref deviceInfoData);
if (!success)
{
throw new Exception("Error disabling device, error code = " + Marshal.GetLastWin32Error());
}
propChangeParams.stateChange = NativeMethods.DICS_ENABLE;
success = NativeMethods.SetupDiSetClassInstallParams(deviceInfoSet, ref deviceInfoData, ref propChangeParams, Marshal.SizeOf(propChangeParams));
if (!success)
{
throw new Exception("Error setting class install params, error code = " + Marshal.GetLastWin32Error());
}
success = NativeMethods.SetupDiCallClassInstaller(NativeMethods.DIF_PROPERTYCHANGE, deviceInfoSet, ref deviceInfoData);
if (!success)
{
throw new Exception("Error enabling device, error code = " + Marshal.GetLastWin32Error());
}
NativeMethods.SetupDiDestroyDeviceInfoList(deviceInfoSet);
}
public static void reEnableDevice(string deviceInstanceId)
{
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);
if (!success)
{
throw new Exception("Error getting device info data, error code = " + Marshal.GetLastWin32Error());
}
success = NativeMethods.SetupDiEnumDeviceInfo(deviceInfoSet, 1, ref deviceInfoData); // Checks that we have a unique device
if (success)
{
throw new Exception("Can't find 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)
{
throw new Exception("Error setting class install params, error code = " + Marshal.GetLastWin32Error());
}
success = NativeMethods.SetupDiCallClassInstaller(NativeMethods.DIF_PROPERTYCHANGE, deviceInfoSet, ref deviceInfoData);
// TEST: If previous SetupDiCallClassInstaller fails, just continue
// otherwise device will likely get permanently disabled.
/*if (!success)
* {
* throw new Exception("Error disabling device, error code = " + Marshal.GetLastWin32Error());
* }
*/
//System.Threading.Thread.Sleep(50);
sw.Restart();
while (sw.ElapsedMilliseconds < 50)
{
// Use SpinWait to keep control of current thread. Using Sleep could potentially
// cause other events to get run out of order
System.Threading.Thread.SpinWait(100);
}
sw.Stop();
propChangeParams.stateChange = NativeMethods.DICS_ENABLE;
success = NativeMethods.SetupDiSetClassInstallParams(deviceInfoSet, ref deviceInfoData, ref propChangeParams, Marshal.SizeOf(propChangeParams));
if (!success)
{
throw new Exception("Error setting class install params, error code = " + Marshal.GetLastWin32Error());
}
success = NativeMethods.SetupDiCallClassInstaller(NativeMethods.DIF_PROPERTYCHANGE, deviceInfoSet, ref deviceInfoData);
if (!success)
{
throw new Exception("Error enabling device, error code = " + Marshal.GetLastWin32Error());
}
//System.Threading.Thread.Sleep(50);
sw.Restart();
while (sw.ElapsedMilliseconds < 50)
{
// Use SpinWait to keep control of current thread. Using Sleep could potentially
// cause other events to get run out of order
System.Threading.Thread.SpinWait(100);
}
sw.Stop();
NativeMethods.SetupDiDestroyDeviceInfoList(deviceInfoSet);
}