bool GetNativeDevInfo(DEVICE_INFO deviceToChangeState, out IntPtr ptrDevInfo, out Native.SP_DEVINFO_DATA devData)
{
Guid myGUID = System.Guid.Empty;
IntPtr hDevInfo = Native.SetupDiGetClassDevs(ref myGUID, 0, IntPtr.Zero, Native.DIGCF_ALLCLASSES | Native.DIGCF_PRESENT);
if (hDevInfo.ToInt64() == Native.INVALID_HANDLE_VALUE)
{
throw new Exception("Could retrieve handle for device");
}
Native.SP_DEVINFO_DATA DeviceInfoData;
DeviceInfoData = new Native.SP_DEVINFO_DATA();
//for 32-bit, IntPtr.Size = 4
//for 64-bit, IntPtr.Size = 8
if (IntPtr.Size == 4)
{
DeviceInfoData.cbSize = 28;
}
else if (IntPtr.Size == 8)
{
DeviceInfoData.cbSize = 32;
}
//is devices exist for class
DeviceInfoData.devInst = 0;
DeviceInfoData.classGuid = System.Guid.Empty;
DeviceInfoData.reserved = 0;
UInt32 i;
StringBuilder DeviceHardwareId = new StringBuilder("");
StringBuilder DeviceFriendlyName = new StringBuilder("");
DeviceHardwareId.Capacity = DeviceFriendlyName.Capacity = Native.MAX_DEV_LEN;
for (i = 0; Native.SetupDiEnumDeviceInfo(hDevInfo, i, DeviceInfoData); i++)
{
//Declare vars
Native.SetupDiGetDeviceRegistryProperty(hDevInfo, DeviceInfoData, Native.SPDRP_HARDWAREID, 0, DeviceHardwareId, Native.MAX_DEV_LEN, IntPtr.Zero);
Native.SetupDiGetDeviceRegistryProperty(hDevInfo, DeviceInfoData, Native.SPDRP_FRIENDLYNAME, 0, DeviceFriendlyName, Native.MAX_DEV_LEN, IntPtr.Zero);
Console.WriteLine(DeviceHardwareId + " -- " + DeviceFriendlyName);
if (DeviceHardwareId.ToString().ToLower().Contains(deviceToChangeState.hardwareId.ToLower()) &&
DeviceFriendlyName.ToString().ToLower().Contains(deviceToChangeState.friendlyName.ToLower()))
{
Console.WriteLine("Found: " + DeviceFriendlyName);
devData = DeviceInfoData;
ptrDevInfo = hDevInfo;
return
(true);
}
}
Native.SetupDiDestroyDeviceInfoList(hDevInfo);
devData = null;
ptrDevInfo = IntPtr.Zero;
return
(false);
}
public static string GetStringPropertyForDevice(IntPtr info, Native.SP_DEVINFO_DATA devdata, DisableHardware.DEVPROPKEY key)
{
uint proptype, outsize;
IntPtr buffer = IntPtr.Zero;
try
{
uint buflen = 512;
buffer = Marshal.AllocHGlobal((int)buflen);
Native.SetupDiGetDevicePropertyW(
info,
ref devdata,
ref key,
out proptype,
buffer,
buflen,
out outsize,
0);
byte[] lbuffer = new byte[outsize];
Marshal.Copy(buffer, lbuffer, 0, (int)outsize);
return(Encoding.Unicode.GetString(lbuffer));
}
finally
{
if (buffer != IntPtr.Zero)
{
Marshal.FreeHGlobal(buffer);
}
}
}
bool _ResetDevice(IntPtr hDevInfo, Native.SP_DEVINFO_DATA devInfoData)
{
int szOfPcp;
IntPtr ptrToPcp;
int szDevInfoData;
IntPtr ptrToDevInfoData;
Native.SP_PROPCHANGE_PARAMS pcp = new Native.SP_PROPCHANGE_PARAMS();
pcp.ClassInstallHeader.cbSize = Marshal.SizeOf(typeof(Native.SP_CLASSINSTALL_HEADER));
pcp.ClassInstallHeader.InstallFunction = Native.DIF_PROPERTYCHANGE;
pcp.StateChange = Native.DICS_PROPCHANGE; // for reset
pcp.Scope = Native.DICS_FLAG_CONFIGSPECIFIC;
pcp.HwProfile = 0;
szOfPcp = Marshal.SizeOf(pcp);
ptrToPcp = Marshal.AllocHGlobal(szOfPcp);
Marshal.StructureToPtr(pcp, ptrToPcp, true);
szDevInfoData = Marshal.SizeOf(devInfoData);
ptrToDevInfoData = Marshal.AllocHGlobal(szDevInfoData);
Marshal.StructureToPtr(devInfoData, ptrToDevInfoData, true);
bool rslt1 = Native.SetupDiSetClassInstallParams(hDevInfo, ptrToDevInfoData, ptrToPcp, Marshal.SizeOf(typeof(Native.SP_PROPCHANGE_PARAMS)));
bool rstl2 = Native.SetupDiCallClassInstaller(Native.DIF_PROPERTYCHANGE, hDevInfo, ptrToDevInfoData);
if (rslt1 && rstl2)
{
return(true);
}
return(false);
}
//Name: GetAll
//Inputs: none
//Outputs: string array
//Errors: This method may throw the following errors.
// Failed to enumerate device tree!
// Invalid handle!
//Remarks: This is code I cobbled together from a number of newsgroup threads
// as well as some C++ stuff I translated off of MSDN. Seems to work.
// The idea is to come up with a list of devices, same as the device
// manager does. Currently it uses the actual "system" names for the
// hardware. It is also possible to use hardware IDs. See the docs
// for SetupDiGetDeviceRegistryProperty in the MS SDK for more details.
public string[] GetAll()
{
List <string> HWList = new List <string>();
try
{
Guid myGUID = System.Guid.Empty;
IntPtr hDevInfo = Native.SetupDiGetClassDevs(ref myGUID, 0, IntPtr.Zero, Native.DIGCF_ALLCLASSES | Native.DIGCF_PRESENT);
if (hDevInfo.ToInt32() == Native.INVALID_HANDLE_VALUE)
{
throw new Exception("Invalid Handle");
}
Native.SP_DEVINFO_DATA DeviceInfoData;
DeviceInfoData = new Native.SP_DEVINFO_DATA();
//for 32-bit, IntPtr.Size = 4
//for 64-bit, IntPtr.Size = 8
if (IntPtr.Size == 4)
{
DeviceInfoData.cbSize = 28;
}
else if (IntPtr.Size == 8)
{
DeviceInfoData.cbSize = 32;
}
//is devices exist for class
DeviceInfoData.devInst = 0;
DeviceInfoData.classGuid = System.Guid.Empty;
DeviceInfoData.reserved = 0;
UInt32 i;
StringBuilder DeviceName = new StringBuilder("");
DeviceName.Capacity = Native.MAX_DEV_LEN;
for (i = 0; Native.SetupDiEnumDeviceInfo(hDevInfo, i, DeviceInfoData); i++)
{
int iter = 0;
//Declare vars
while (iter < 5 && !Native.SetupDiGetDeviceRegistryProperty(hDevInfo,
DeviceInfoData,
Native.SPDRP_DEVICEDESC,
0,
DeviceName,
Native.MAX_DEV_LEN,
IntPtr.Zero))
{
//Skip
System.Threading.Thread.Sleep(100);
iter++;
}
HWList.Add(DeviceName.ToString());
}
Native.SetupDiDestroyDeviceInfoList(hDevInfo);
}
catch (Exception ex)
{
throw new Exception("Failed to enumerate device tree!", ex);
}
return(HWList.ToArray());
}
//Name: SetDeviceState
//Inputs: string[],bool
//Outputs: bool
//Errors: This method may throw the following exceptions.
// Failed to enumerate device tree!
//Remarks: This is nearly identical to the method above except it
// tries to match the hardware description against the criteria
// passed in. If a match is found, that device will the be
// enabled or disabled based on bEnable.
public bool SetDeviceState(DEVICE_INFO deviceToChangeState, bool bEnable)
{
Guid myGUID = System.Guid.Empty;
IntPtr hDevInfo = Native.SetupDiGetClassDevs(ref myGUID, 0, IntPtr.Zero, Native.DIGCF_ALLCLASSES | Native.DIGCF_PRESENT);
if (hDevInfo.ToInt64() == Native.INVALID_HANDLE_VALUE)
{
throw new Exception("Could retrieve handle for device");
}
Native.SP_DEVINFO_DATA DeviceInfoData;
DeviceInfoData = new Native.SP_DEVINFO_DATA();
//for 32-bit, IntPtr.Size = 4
//for 64-bit, IntPtr.Size = 8
if (IntPtr.Size == 4)
{
DeviceInfoData.cbSize = 28;
}
else if (IntPtr.Size == 8)
{
DeviceInfoData.cbSize = 32;
}
//is devices exist for class
DeviceInfoData.devInst = 0;
DeviceInfoData.classGuid = System.Guid.Empty;
DeviceInfoData.reserved = 0;
UInt32 i;
StringBuilder DeviceHardwareId = new StringBuilder("");
StringBuilder DeviceFriendlyName = new StringBuilder("");
DeviceHardwareId.Capacity = DeviceFriendlyName.Capacity = Native.MAX_DEV_LEN;
for (i = 0; Native.SetupDiEnumDeviceInfo(hDevInfo, i, DeviceInfoData); i++)
{
DeviceFriendlyName.Length = DeviceHardwareId.Length = 0;
//Declare vars
Native.SetupDiGetDeviceRegistryProperty(hDevInfo, DeviceInfoData, Native.SPDRP_HARDWAREID, 0, DeviceHardwareId, Native.MAX_DEV_LEN, IntPtr.Zero);
Native.SetupDiGetDeviceRegistryProperty(hDevInfo, DeviceInfoData, Native.SPDRP_FRIENDLYNAME, 0, DeviceFriendlyName, Native.MAX_DEV_LEN, IntPtr.Zero);
//Console.WriteLine(DeviceHardwareId + " -- " + DeviceFriendlyName);
if (DeviceHardwareId.ToString().ToLower().Contains(deviceToChangeState.hardwareId.ToLower()) && DeviceFriendlyName.ToString().ToLower().Contains(deviceToChangeState.friendlyName.ToLower()))
{
Console.WriteLine("Found: " + DeviceFriendlyName);
bool couldChangeState = ChangeIt(hDevInfo, DeviceInfoData, bEnable);
if (!couldChangeState)
{
throw new Exception("Unable to change " + DeviceFriendlyName + " device state, make sure you have administrator privileges");
}
break;
}
}
Native.SetupDiDestroyDeviceInfoList(hDevInfo);
return(true);
}
//Name: SetDeviceState
//Inputs: string[],bool
//Outputs: bool
//Errors: This method may throw the following exceptions.
// Failed to enumerate device tree!
//Remarks: This is nearly identical to the method above except it
// tries to match the hardware description against the criteria
// passed in. If a match is found, that device will the be
// enabled or disabled based on bEnable.
public bool SetDeviceState(string[] match, bool bEnable)
{
try
{
Guid myGUID = System.Guid.Empty;
IntPtr hDevInfo = Native.SetupDiGetClassDevs(ref myGUID, 0, IntPtr.Zero, Native.DIGCF_ALLCLASSES | Native.DIGCF_PRESENT);
if (hDevInfo.ToInt32() == Native.INVALID_HANDLE_VALUE)
{
return(false);
}
Native.SP_DEVINFO_DATA DeviceInfoData;
DeviceInfoData = new Native.SP_DEVINFO_DATA();
DeviceInfoData.cbSize = 28;
//is devices exist for class
DeviceInfoData.devInst = 0;
DeviceInfoData.classGuid = System.Guid.Empty;
DeviceInfoData.reserved = 0;
UInt32 i;
StringBuilder DeviceName = new StringBuilder("");
DeviceName.Capacity = Native.MAX_DEV_LEN;
for (i = 0; Native.SetupDiEnumDeviceInfo(hDevInfo, i, DeviceInfoData); i++)
{
//Declare vars
while (!Native.SetupDiGetDeviceRegistryProperty(hDevInfo,
DeviceInfoData,
Native.SPDRP_DEVICEDESC,
0,
DeviceName,
Native.MAX_DEV_LEN,
IntPtr.Zero))
{
//Skip
}
bool bMatch = true;
foreach (string search in match)
{
if (!DeviceName.ToString().ToLower().Contains(search.ToLower()))
{
bMatch = false;
break;
}
}
if (bMatch)
{
ChangeIt(hDevInfo, DeviceInfoData, bEnable);
}
}
Native.SetupDiDestroyDeviceInfoList(hDevInfo);
}
catch (Exception ex)
{
throw new Exception("Failed to enumerate device tree!", ex);
return(false);
}
return(true);
}
//Name: GetAll
//Inputs: none
//Outputs: string array
//Errors: This method may throw the following errors.
// Failed to enumerate device tree!
// Invalid handle!
//Remarks: This is code I cobbled together from a number of newsgroup threads
// as well as some C++ stuff I translated off of MSDN. Seems to work.
// The idea is to come up with a list of devices, same as the device
// manager does. Currently it uses the actual "system" names for the
// hardware. It is also possible to use hardware IDs. See the docs
// for SetupDiGetDeviceRegistryProperty in the MS SDK for more details.
public List <DEVICE_INFO> GetAll()
{
List <DEVICE_INFO> HWList = new List <DEVICE_INFO>();
try
{
Guid myGUID = System.Guid.Empty;
IntPtr hDevInfo = Native.SetupDiGetClassDevs(ref myGUID, 0, IntPtr.Zero, Native.DIGCF_ALLCLASSES | Native.DIGCF_PRESENT);
if (hDevInfo.ToInt32() == Native.INVALID_HANDLE_VALUE)
{
throw new Exception("Invalid Handle");
}
Native.SP_DEVINFO_DATA DeviceInfoData;
DeviceInfoData = new Native.SP_DEVINFO_DATA();
//for 32-bit, IntPtr.Size = 4
//for 64-bit, IntPtr.Size = 8
if (IntPtr.Size == 4)
{
DeviceInfoData.cbSize = 28;
}//if
else if (IntPtr.Size == 8)
{
DeviceInfoData.cbSize = 32;
}//if
//is devices exist for class
DeviceInfoData.devInst = 0;
DeviceInfoData.classGuid = System.Guid.Empty;
DeviceInfoData.reserved = 0;
UInt32 i;
StringBuilder DeviceName = new StringBuilder("");
StringBuilder DeviceFriendlyName = new StringBuilder("");
StringBuilder DeviceHardwareId = new StringBuilder("");
DeviceName.Capacity = DeviceFriendlyName.Capacity = DeviceHardwareId.Capacity = Native.MAX_DEV_LEN;
for (i = 0; Native.SetupDiEnumDeviceInfo(hDevInfo, i, DeviceInfoData); i++)
{
DeviceName.Length = DeviceFriendlyName.Length = DeviceHardwareId.Length = 0;
if (!Native.SetupDiGetDeviceRegistryProperty(hDevInfo, DeviceInfoData, Native.SPDRP_DEVICEDESC, 0, DeviceName, Native.MAX_DEV_LEN, IntPtr.Zero))
{
continue;
}
Native.SetupDiGetDeviceRegistryProperty(hDevInfo, DeviceInfoData, Native.SPDRP_FRIENDLYNAME, 0, DeviceFriendlyName, Native.MAX_DEV_LEN, IntPtr.Zero);
Native.SetupDiGetDeviceRegistryProperty(hDevInfo, DeviceInfoData, Native.SPDRP_HARDWAREID, 0, DeviceHardwareId, Native.MAX_DEV_LEN, IntPtr.Zero);
HWList.Add(new DEVICE_INFO {
name = DeviceName.ToString(), friendlyName = DeviceFriendlyName.ToString(), hardwareId = DeviceHardwareId.ToString()
});
}
Native.SetupDiDestroyDeviceInfoList(hDevInfo);
}
catch (Exception ex)
{
throw new Exception("Failed to enumerate device tree!", ex);
}
return(HWList);
}
//Name: ChangeIt
//Inputs: pointer to hdev, SP_DEV_INFO, bool
//Outputs: bool
//Errors: This method may throw the following exceptions.
// Unable to change device state!
//Remarks: Attempts to enable or disable a device driver.
// IMPORTANT NOTE!!! This code currently does not check the reboot flag.
// ================= Some devices require you reboot the OS for the change
// to take affect. If this describes your device, you
// will need to look at the SDK call:
// SetupDiGetDeviceInstallParams. You can call it
// directly after ChangeIt to see whether or not you need
// to reboot the OS for you change to go into effect.
private bool ChangeIt(IntPtr hDevInfo, Native.SP_DEVINFO_DATA devInfoData, bool bEnable)
{
try
{
//Marshalling vars
int szOfPcp;
IntPtr ptrToPcp;
int szDevInfoData;
IntPtr ptrToDevInfoData;
Native.SP_PROPCHANGE_PARAMS pcp = new Native.SP_PROPCHANGE_PARAMS();
if (bEnable)
{
pcp.ClassInstallHeader.cbSize = Marshal.SizeOf(typeof(Native.SP_CLASSINSTALL_HEADER));
pcp.ClassInstallHeader.InstallFunction = Native.DIF_PROPERTYCHANGE;
pcp.StateChange = Native.DICS_ENABLE;
pcp.Scope = Native.DICS_FLAG_GLOBAL;
pcp.HwProfile = 0;
//Marshal the params
szOfPcp = Marshal.SizeOf(pcp);
ptrToPcp = Marshal.AllocHGlobal(szOfPcp);
Marshal.StructureToPtr(pcp, ptrToPcp, true);
szDevInfoData = Marshal.SizeOf(devInfoData);
ptrToDevInfoData = Marshal.AllocHGlobal(szDevInfoData);
if (Native.SetupDiSetClassInstallParams(hDevInfo, ptrToDevInfoData, ptrToPcp, Marshal.SizeOf(typeof(Native.SP_PROPCHANGE_PARAMS))))
{
Native.SetupDiCallClassInstaller(Native.DIF_PROPERTYCHANGE, hDevInfo, ptrToDevInfoData);
}
pcp.ClassInstallHeader.cbSize = Marshal.SizeOf(typeof(Native.SP_CLASSINSTALL_HEADER));
pcp.ClassInstallHeader.InstallFunction = Native.DIF_PROPERTYCHANGE;
pcp.StateChange = Native.DICS_ENABLE;
pcp.Scope = Native.DICS_FLAG_CONFIGSPECIFIC;
pcp.HwProfile = 0;
}
else
{
pcp.ClassInstallHeader.cbSize = Marshal.SizeOf(typeof(Native.SP_CLASSINSTALL_HEADER));
pcp.ClassInstallHeader.InstallFunction = Native.DIF_PROPERTYCHANGE;
pcp.StateChange = Native.DICS_DISABLE;
pcp.Scope = Native.DICS_FLAG_CONFIGSPECIFIC;
pcp.HwProfile = 0;
}
//Marshal the params
szOfPcp = Marshal.SizeOf(pcp);
ptrToPcp = Marshal.AllocHGlobal(szOfPcp);
Marshal.StructureToPtr(pcp, ptrToPcp, true);
szDevInfoData = Marshal.SizeOf(devInfoData);
ptrToDevInfoData = Marshal.AllocHGlobal(szDevInfoData);
Marshal.StructureToPtr(devInfoData, ptrToDevInfoData, true);
bool rslt1 = Native.SetupDiSetClassInstallParams(hDevInfo, ptrToDevInfoData, ptrToPcp, Marshal.SizeOf(typeof(Native.SP_PROPCHANGE_PARAMS)));
bool rstl2 = Native.SetupDiCallClassInstaller(Native.DIF_PROPERTYCHANGE, hDevInfo, ptrToDevInfoData);
if ((!rslt1) || (!rstl2))
{
throw new Exception("Unable to change device state!");
}
else
{
return(true);
}
}
catch (Exception)
{
return(false);
}
}
public HWinfoModel[] GetAll()
{
List <HWinfoModel> HWList = new List <HWinfoModel>();
try
{
Guid myGUID = System.Guid.Empty;
IntPtr hDevInfo = Native.SetupDiGetClassDevs(ref myGUID, 0, IntPtr.Zero, Native.DIGCF_ALLCLASSES | Native.DIGCF_PRESENT);
if (hDevInfo.ToInt32() == Native.INVALID_HANDLE_VALUE)
{
throw new Exception("Invalid Handle");
}
Native.SP_DEVINFO_DATA DeviceInfoData;
DeviceInfoData = new Native.SP_DEVINFO_DATA();
DeviceInfoData.cbSize = 28;
//is devices exist for class
DeviceInfoData.devInst = 0;
DeviceInfoData.classGuid = System.Guid.Empty;
DeviceInfoData.reserved = 0;
UInt32 i;
StringBuilder DeviceName = new StringBuilder("");
DeviceName.Capacity = Native.MAX_DEV_LEN;
for (i = 0; Native.SetupDiEnumDeviceInfo(hDevInfo, i, DeviceInfoData); i++)
{
Debug.WriteLine(i + "- " + DeviceInfoData.classGuid);
//Declare vars
int skip = 0;
while (!Native.SetupDiGetDeviceRegistryProperty(hDevInfo,
DeviceInfoData,
Native.SPDRP_DEVICEDESC,
0,
DeviceName,
Native.MAX_DEV_LEN,
IntPtr.Zero))
{
// Debug.WriteLine("Skip");
skip++;
if (skip > 1024)
{
break;
}
}
if (skip < 1024)
{
if (DeviceInfoData.classGuid == Guid.Parse("{a45c254e-df1c-4efd-8020-67d146a850e0}"))
{
Debug.WriteLine("ooooh!");
}
string devicepath = "";
var DEVPKEY_Device_HardwareIds = new DisableHardware.DEVPROPKEY();
DEVPKEY_Device_HardwareIds.fmtid = new Guid((uint)0x540b947e, (ushort)0x8b40, (ushort)0x45bc, 0xa8, 0xa2, 0x6a, 0x0b, 0x89, 0x4c, 0xbd, 0xa2);
DEVPKEY_Device_HardwareIds.pid = 4;
try
{
devicepath =
GetStringPropertyForDevice(hDevInfo, DeviceInfoData, DEVPKEY_Device_HardwareIds);
if (devicepath != "")
{
Debug.WriteLine(devicepath);
}
}
catch
{
}
HWList.Add(new HWinfoModel
{
Name = DeviceName.ToString(),
Pointer = hDevInfo,
ClassGuid = DeviceInfoData.classGuid
});
}
}
Native.SetupDiDestroyDeviceInfoList(hDevInfo);
}
catch (Exception ex)
{
throw new Exception("Failed to enumerate device tree!", ex);
}
return(HWList.ToArray());
}
//Name: SetDeviceState
//Inputs: string[],bool
//Outputs: bool
//Errors: This method may throw the following exceptions.
// Failed to enumerate device tree!
//Remarks: This is nearly identical to the method above except it
// tries to match the hardware description against the criteria
// passed in. If a match is found, that device will the be
// enabled or disabled based on bEnable.
public bool SetDeviceState(string[] match, bool bEnable)
{
try
{
Guid myGUID = System.Guid.Empty;
IntPtr hDevInfo = Native.SetupDiGetClassDevs(ref myGUID, 0, IntPtr.Zero, Native.DIGCF_ALLCLASSES | Native.DIGCF_PRESENT);
if (hDevInfo.ToInt32() == Native.INVALID_HANDLE_VALUE)
{
return false;
}
Native.SP_DEVINFO_DATA DeviceInfoData;
DeviceInfoData = new Native.SP_DEVINFO_DATA();
if (IntPtr.Size == 4)
{
DeviceInfoData.cbSize = 28;
}
else if (IntPtr.Size == 8)
{
DeviceInfoData.cbSize = 32;
}
//is devices exist for class
DeviceInfoData.devInst = 0;
DeviceInfoData.classGuid = System.Guid.Empty;
DeviceInfoData.reserved = 0;
UInt32 i;
StringBuilder DeviceName = new StringBuilder("");
DeviceName.Capacity = Native.MAX_DEV_LEN;
for (i = 0; Native.SetupDiEnumDeviceInfo(hDevInfo, i, DeviceInfoData); i++)
{
int iter = 0;
//Declare vars
while (iter < 5 && !Native.SetupDiGetDeviceRegistryProperty(hDevInfo,
DeviceInfoData,
Native.SPDRP_DEVICEDESC,
0,
DeviceName,
Native.MAX_DEV_LEN,
IntPtr.Zero))
{
//Skip
System.Threading.Thread.Sleep(100);
iter++;
}
bool bMatch = true;
foreach (string search in match)
{
if (!DeviceName.ToString().ToLower().Contains(search.ToLower()))
{
bMatch = false;
break;
}
}
if (bMatch)
{
ChangeIt(hDevInfo, DeviceInfoData, bEnable);
}
}
Native.SetupDiDestroyDeviceInfoList(hDevInfo);
}
catch (Exception ex)
{
throw new Exception("Failed to enumerate device tree!", ex);
}
return true;
}
public bool CheckDevice(string deviceName)
{
bool result = false;
try
{
Guid myGUID = System.Guid.Empty;
IntPtr hDevInfo = Native.SetupDiGetClassDevs(ref myGUID, 0, IntPtr.Zero, Native.DIGCF_ALLCLASSES | Native.DIGCF_PRESENT);
if (hDevInfo.ToInt32() == Native.INVALID_HANDLE_VALUE)
{
throw new Exception("Invalid Handle");
}
Native.SP_DEVINFO_DATA DeviceInfoData;
DeviceInfoData = new Native.SP_DEVINFO_DATA();
//for 32-bit, IntPtr.Size = 4
//for 64-bit, IntPtr.Size = 8
if (IntPtr.Size == 4)
{
DeviceInfoData.cbSize = 28;
}
else if (IntPtr.Size == 8)
{
DeviceInfoData.cbSize = 32;
}
//is devices exist for class
DeviceInfoData.devInst = 0;
DeviceInfoData.classGuid = System.Guid.Empty;
DeviceInfoData.reserved = 0;
UInt32 i;
StringBuilder DeviceName = new StringBuilder("");
DeviceName.Capacity = Native.MAX_DEV_LEN;
for (i = 0; Native.SetupDiEnumDeviceInfo(hDevInfo, i, DeviceInfoData); i++)
{
//Declare vars
int iter = 0;
while (iter < 5 && !Native.SetupDiGetDeviceRegistryProperty(hDevInfo,
DeviceInfoData,
Native.SPDRP_DEVICEDESC,
0,
DeviceName,
Native.MAX_DEV_LEN,
IntPtr.Zero))
{
System.Threading.Thread.Sleep(100);
iter++;
}
if (DeviceName.ToString().ToLower().Contains(deviceName))
{
result = true;
break;
}
}
Native.SetupDiDestroyDeviceInfoList(hDevInfo);
}
catch (Exception ex)
{
throw new Exception("Failed to enumerate device tree!", ex);
}
return result;
}
//Name: GetAll
//Inputs: none
//Outputs: string array
//Errors: This method may throw the following errors.
// Failed to enumerate device tree!
// Invalid handle!
//Remarks: This is code I cobbled together from a number of newsgroup threads
// as well as some C++ stuff I translated off of MSDN. Seems to work.
// The idea is to come up with a list of devices, same as the device
// manager does. Currently it uses the actual "system" names for the
// hardware. It is also possible to use hardware IDs. See the docs
// for SetupDiGetDeviceRegistryProperty in the MS SDK for more details.
public string[] GetAll()
{
List<string> HWList = new List<string>();
try
{
Guid myGUID = Guid.Empty;
IntPtr hDevInfo = Native.SetupDiGetClassDevs(ref myGUID, 0, IntPtr.Zero, Native.DIGCF_ALLCLASSES | Native.DIGCF_PRESENT);
if (hDevInfo.ToInt32() == Native.INVALID_HANDLE_VALUE)
{
throw new Exception("Invalid Handle");
}
Native.SP_DEVINFO_DATA DeviceInfoData = new Native.SP_DEVINFO_DATA();
//for 32-bit, IntPtr.Size = 4
//for 64-bit, IntPtr.Size = 8
if (IntPtr.Size == 4)
{
DeviceInfoData.cbSize = 28;
}
else if (IntPtr.Size == 8)
{
DeviceInfoData.cbSize = 32;
}
//is devices exist for class
DeviceInfoData.devInst = 0;
DeviceInfoData.classGuid = System.Guid.Empty;
DeviceInfoData.reserved = 0;
UInt32 i;
StringBuilder DeviceName = new StringBuilder("");
DeviceName.Capacity = Native.MAX_DEV_LEN;
for (i = 0; Native.SetupDiEnumDeviceInfo(hDevInfo, i, DeviceInfoData); i++)
{
int iter = 0;
//Declare vars
while (iter < 5 && !Native.SetupDiGetDeviceRegistryProperty(hDevInfo,
DeviceInfoData,
Native.SPDRP_DEVICEDESC,
0,
DeviceName,
Native.MAX_DEV_LEN,
IntPtr.Zero))
{
//Skip
System.Threading.Thread.Sleep(100);
iter++;
}
HWList.Add(DeviceName.ToString());
}
Native.SetupDiDestroyDeviceInfoList(hDevInfo);
}
catch (Exception ex)
{
throw new Exception("Failed to enumerate device tree!",ex);
}
return HWList.ToArray();
}
