从磁盘编号中检索虚拟磁盘文件名

时间:2010-05-02 23:36:36

标签: c# winapi pinvoke virtual-disk

当我在diskpart中列出虚拟磁盘时:

DISKPART> list vdisk

  VDisk ###  Disk ###  State                 Type       File
  ---------  --------  --------------------  ---------  ----
  VDisk 0    Disk 2    Attached not open     Fixed       C:\Disk.vhd

这里有趣的部分是文件名。如果我知道磁盘编号,我试图找到相应的函数,它会给我文件名(在File列下)。

理想情况下,我会提供“ \\?\ PhysicalDrive2 ”,我会得到“ C:\ Disk.vhd ”。

我已经尝试过:

  1. 使用diskpart和解析输出 - 因为它是未记录的格式,它可以随时更改。这不是我所依赖的。
  2. 常规VHD API - 没有函数将磁盘编号作为参数。
  3. Microsoft.Storage.Vds.dll - 有一些枚举通过每个驱动器(例如Service.Providers),但没有属性/函数可以为我提供源文件的名称。虽然我现在可以确定,例如驱动器D:是虚拟驱动器,我还是不知道连接了哪个.vhd文件。
  4. 知道可能是哪个功能?

5 个答案:

答案 0 :(得分:12)

以下是两种在本地计算机上检索虚拟磁盘并打印其信息的解决方案。这两个解决方案演示了如何使用VDS COM对象以本机和托管方式访问这些数据。

托管解决方案

我已经从MSDN Documentation和Windows 7 SDK(主要是vds.h)创建了部分COM Interop。请注意,COM包装器是部分的,这意味着某些方法尚未移植。

以下是使用.NET COM互操作的托管应用程序:

  • 加载VDS服务
  • 查询虚拟磁盘提供程序
  • 列出每个提供商处理的所有虚拟磁盘:
    • 虚拟磁盘的属性提供其GUID,其完整驱动程序路径,卷大小及其磁盘文件(即C:\Disk.vhd)。
    • 虚拟磁盘也可以作为通用磁盘查询,并提供其名称(即\\?\PhysicalDrive1),其友好名称和其他属性。

using System;
using System.Runtime.InteropServices;

namespace VDiskDumper
{
    class Program
    {
        static void Main(string[] args)
        {
            // Create the service loader
            VdsServiceLoader loaderClass = new VdsServiceLoader();
            IVdsServiceLoader loader = (IVdsServiceLoader)loaderClass;
            Console.WriteLine("Got Loader");

            // Load the service
            IVdsService service;
            loader.LoadService(null, out service);
            Console.WriteLine("Got Service");

            // Wait for readyness
            service.WaitForServiceReady();
            Console.WriteLine("Service is ready");

            // Query for vdisk providers
            IEnumVdsObject providerEnum;
            service.QueryProviders(VDS_QUERY_PROVIDER_FLAG.VDS_QUERY_VIRTUALDISK_PROVIDERS, out providerEnum);
            Console.WriteLine("Got Providers");

            // Iterate
            while (true)
            {
                uint fetched;
                object unknown;
                providerEnum.Next(1, out unknown, out fetched);

                if (fetched == 0) break;

                // Cast to the required type
                IVdsVdProvider provider = (IVdsVdProvider)unknown;
                Console.WriteLine("Got VD Provider");

                Dump(provider);
            }

            Console.ReadKey();
        }

        private static void Dump(IVdsVdProvider provider)
        {
            // Query for the vdisks
            IEnumVdsObject diskEnum;
            provider.QueryVDisks(out diskEnum);
            Console.WriteLine("Got VDisks");

            // Iterate
            while (true)
            {
                uint fetched;
                object unknown;
                diskEnum.Next(1, out unknown, out fetched);

                if (fetched == 0) break;

                // Cast to the required type
                IVdsVDisk vDisk = (IVdsVDisk)unknown;

                // Get the vdisk properties
                VDS_VDISK_PROPERTIES vdiskProperties;
                vDisk.GetProperties(out vdiskProperties);

                Console.WriteLine("-> VDisk Id=" + vdiskProperties.Id);
                Console.WriteLine("-> VDisk Device Name=" + vdiskProperties.pDeviceName);
                Console.WriteLine("-> VDisk Path=" + vdiskProperties.pPath);

                // Get the associated disk
                IVdsDisk disk;
                provider.GetDiskFromVDisk(vDisk, out disk);

                // Get the disk properties
                VDS_DISK_PROP diskProperties;
                disk.GetProperties(out diskProperties);

                Console.WriteLine("-> Disk Name=" + diskProperties.pwszName);
                Console.WriteLine("-> Disk Friendly=" + diskProperties.pwszFriendlyName);
            }
        }
    }

    [ComImport, Guid("118610b7-8d94-4030-b5b8-500889788e4e"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IEnumVdsObject
    {
        void Next(uint numberOfObjects, [MarshalAs(UnmanagedType.IUnknown)] out object objectUnk, out uint numberFetched);
        void Skip(uint NumberOfObjects);
        void Reset();
        void Clone(out IEnumVdsObject Enum);
    }

    [ComImport, Guid("07e5c822-f00c-47a1-8fce-b244da56fd06"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IVdsDisk
    {
        void GetProperties(out VDS_DISK_PROP diskProperties);
        void GetPack(); // Unported method
        void GetIdentificationData(IntPtr lunInfo);
        void QueryExtents(); // Unported method
        void slot4();
        void SetFlags(); // Unported method
        void ClearFlags(); // Unported method
    }

    [ComImport, Guid("0818a8ef-9ba9-40d8-a6f9-e22833cc771e"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IVdsService
    {
        [PreserveSig]
        int IsServiceReady();
        [PreserveSig]
        int WaitForServiceReady();
        void GetProperties(); // Unported method
        void QueryProviders(VDS_QUERY_PROVIDER_FLAG mask, out IEnumVdsObject providers);
        void QueryMaskedDisks(out IEnumVdsObject disks);
        void QueryUnallocatedDisks(out IEnumVdsObject disks);
        void GetObject(); // Unported method
        void QueryDriveLetters(); // Unported method
        void QueryFileSystemTypes(out IntPtr fileSystemTypeProps, out uint numberOfFileSystems);
        void Reenumerate();
        void Refresh();
        void CleanupObsoleteMountPoints();
        void Advise(); // Unported method
        void Unadvise(); // Unported method
        void Reboot();
        void SetFlags(); // Unported method
        void ClearFlags(); // Unported method
    }

    [ComImport, Guid("e0393303-90d4-4a97-ab71-e9b671ee2729"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IVdsServiceLoader
    {
        void LoadService([In, MarshalAs(UnmanagedType.LPWStr)] string machineName, out IVdsService vdsService);
    }

    [ComImport, Guid("1e062b84-e5e6-4b4b-8a25-67b81e8f13e8"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IVdsVDisk
    {
        void Open(); // Unported method
        void GetProperties(out VDS_VDISK_PROPERTIES pDiskProperties);
        void GetHostVolume(); // Unported method
        void GetDeviceName(); // Unported method
    }

    [ComImport, Guid("b481498c-8354-45f9-84a0-0bdd2832a91f"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IVdsVdProvider
    {
        void QueryVDisks(out IEnumVdsObject ppEnum);
        void CreateVDisk(); // Unported method
        void AddVDisk(); // Unported method
        void GetDiskFromVDisk(IVdsVDisk pVDisk, out IVdsDisk ppDisk);
        void GetVDiskFromDisk(IVdsDisk pDisk, out IVdsVDisk ppVDisk);
    }

    [ComImport, Guid("9c38ed61-d565-4728-aeee-c80952f0ecde")]
    public class VdsServiceLoader
    {
    }

    [StructLayout(LayoutKind.Explicit)]
    public struct Signature
    {
        [FieldOffset(0)]
        public uint dwSignature;
        [FieldOffset(0)]
        public Guid DiskGuid;
    }

    [StructLayout(LayoutKind.Sequential)]
    public struct VDS_DISK_PROP
    {
        public Guid Id;
        public VDS_DISK_STATUS Status;
        public VDS_LUN_RESERVE_MODE ReserveMode;
        public VDS_HEALTH health;
        public uint dwDeviceType;
        public uint dwMediaType;
        public ulong ullSize;
        public uint ulBytesPerSector;
        public uint ulSectorsPerTrack;
        public uint ulTracksPerCylinder;
        public uint ulFlags;
        public VDS_STORAGE_BUS_TYPE BusType;
        public VDS_PARTITION_STYLE PartitionStyle;
        public Signature dwSignature;
        [MarshalAs(UnmanagedType.LPWStr)]
        public string pwszDiskAddress;
        [MarshalAs(UnmanagedType.LPWStr)]
        public string pwszName;
        [MarshalAs(UnmanagedType.LPWStr)]
        public string pwszFriendlyName;
        [MarshalAs(UnmanagedType.LPWStr)]
        public string pwszAdaptorName;
        [MarshalAs(UnmanagedType.LPWStr)]
        public string pwszDevicePath;
    }

    [StructLayout(LayoutKind.Sequential)]
    public struct VIRTUAL_STORAGE_TYPE
    {
        public uint DeviceId;
        public Guid VendorId;
    }

    [StructLayout(LayoutKind.Sequential)]
    public struct VDS_VDISK_PROPERTIES
    {
        public Guid Id;
        public VDS_VDISK_STATE State;
        public VIRTUAL_STORAGE_TYPE VirtualDeviceType;
        public ulong VirtualSize;
        public ulong PhysicalSize;
        [MarshalAs(UnmanagedType.LPWStr)]
        public String pPath;
        [MarshalAs(UnmanagedType.LPWStr)]
        public String pDeviceName;
        public DEPENDENT_DISK_FLAG DiskFlag;
        public bool bIsChild;
        [MarshalAs(UnmanagedType.LPWStr)]
        public String pParentPath;
    }

    public enum DEPENDENT_DISK_FLAG
    {
        DEPENDENT_DISK_FLAG_NONE = 0x00000000,
        DEPENDENT_DISK_FLAG_MULT_BACKING_FILES = 0x00000001,
        DEPENDENT_DISK_FLAG_FULLY_ALLOCATED = 0x00000002,
        DEPENDENT_DISK_FLAG_READ_ONLY = 0x00000004,
        DEPENDENT_DISK_FLAG_REMOTE = 0x00000008,
        DEPENDENT_DISK_FLAG_SYSTEM_VOLUME = 0x00000010,
        DEPENDENT_DISK_FLAG_SYSTEM_VOLUME_PARENT = 0x00000020,
        DEPENDENT_DISK_FLAG_REMOVABLE = 0x00000040,
        DEPENDENT_DISK_FLAG_NO_DRIVE_LETTER = 0x00000080,
        DEPENDENT_DISK_FLAG_PARENT = 0x00000100,
        DEPENDENT_DISK_FLAG_NO_HOST_DISK = 0x00000200,
        DEPENDENT_DISK_FLAG_PERMANENT_LIFETIME = 0x00000400,
    }

    public enum VDS_DISK_STATUS
    {
        VDS_DS_UNKNOWN = 0,
        VDS_DS_ONLINE = 1,
        VDS_DS_NOT_READY = 2,
        VDS_DS_NO_MEDIA = 3,
        VDS_DS_FAILED = 5,
        VDS_DS_MISSING = 6,
        VDS_DS_OFFLINE = 4
    }

    public enum VDS_HEALTH
    {
        VDS_H_UNKNOWN = 0,
        VDS_H_HEALTHY = 1,
        VDS_H_REBUILDING = 2,
        VDS_H_STALE = 3,
        VDS_H_FAILING = 4,
        VDS_H_FAILING_REDUNDANCY = 5,
        VDS_H_FAILED_REDUNDANCY = 6,
        VDS_H_FAILED_REDUNDANCY_FAILING = 7,
        VDS_H_FAILED = 8,
        VDS_H_REPLACED = 9,
        VDS_H_PENDING_FAILURE = 10,
        VDS_H_DEGRADED = 11
    }

    public enum VDS_LUN_RESERVE_MODE
    {
        VDS_LRM_NONE = 0,
        VDS_LRM_EXCLUSIVE_RW = 1,
        VDS_LRM_EXCLUSIVE_RO = 2,
        VDS_LRM_SHARED_RO = 3,
        VDS_LRM_SHARED_RW = 4
    }

    public enum VDS_PARTITION_STYLE
    {
        VDS_PST_UNKNOWN = 0,
        VDS_PST_MBR = 1,
        VDS_PST_GPT = 2
    }

    public enum VDS_QUERY_PROVIDER_FLAG
    {
        VDS_QUERY_SOFTWARE_PROVIDERS = 0x1,
        VDS_QUERY_HARDWARE_PROVIDERS = 0x2,
        VDS_QUERY_VIRTUALDISK_PROVIDERS = 0x4
    }

    public enum VDS_STORAGE_BUS_TYPE
    {
        VDSBusTypeUnknown = 0,
        VDSBusTypeScsi = 0x1,
        VDSBusTypeAtapi = 0x2,
        VDSBusTypeAta = 0x3,
        VDSBusType1394 = 0x4,
        VDSBusTypeSsa = 0x5,
        VDSBusTypeFibre = 0x6,
        VDSBusTypeUsb = 0x7,
        VDSBusTypeRAID = 0x8,
        VDSBusTypeiScsi = 0x9,
        VDSBusTypeSas = 0xa,
        VDSBusTypeSata = 0xb,
        VDSBusTypeSd = 0xc,
        VDSBusTypeMmc = 0xd,
        VDSBusTypeMax = 0xe,
        VDSBusTypeFileBackedVirtual = 0xf,
        VDSBusTypeMaxReserved = 0x7f
    }

    public enum VDS_VDISK_STATE
    {
        VDS_VST_UNKNOWN = 0,
        VDS_VST_ADDED,
        VDS_VST_OPEN,
        VDS_VST_ATTACH_PENDING,
        VDS_VST_ATTACHED_NOT_OPEN,
        VDS_VST_ATTACHED,
        VDS_VST_DETACH_PENDING,
        VDS_VST_COMPACTING,
        VDS_VST_MERGING,
        VDS_VST_EXPANDING,
        VDS_VST_DELETED,
        VDS_VST_MAX
    }
}

原生解决方案

以下是使用VDS COM接口的本机应用程序:

  • 加载VDS服务
  • 查询虚拟磁盘提供程序
  • 列出每个提供商处理的所有虚拟磁盘:
    • 虚拟磁盘的属性提供其GUID,其完整驱动程序路径,卷大小及其磁盘文件(即C:\Disk.vhd)。
    • 虚拟磁盘也可以作为通用磁盘查询,并提供其名称(即\\?\PhysicalDrive1),其友好名称和其他属性。

#include "initguid.h"
#include "vds.h"
#include <stdio.h>

#pragma comment( lib, "ole32.lib" )
#pragma comment( lib, "rpcrt4.lib" )

// Simple macro to release non-null interfaces.
#define _SafeRelease(x) {if (NULL != x) { x->Release(); x = NULL; } }

void exploreVDiskProvider(IVdsVdProvider *pVdProvider);

int __cdecl main(void) 
{
    HRESULT hResult;
    ULONG ulFetched = 0;
    BOOL bDone = FALSE;

    IVdsServiceLoader *pLoader = NULL;
    IVdsService *pService = NULL;
    IEnumVdsObject *pProviderEnum = NULL;
    IUnknown *pUnknown = NULL;
    IVdsVdProvider *pVdProvider = NULL;

    // Initialize COM
    hResult = CoInitialize(NULL);
    if (FAILED(hResult)) goto bail;

    // For this, get a pointer to the VDS Loader
    hResult = CoCreateInstance(CLSID_VdsLoader,
        NULL,
        CLSCTX_LOCAL_SERVER,
        IID_IVdsServiceLoader,
        (void **) &pLoader);
    if (FAILED(hResult)) goto bail;

    printf("Loading VDS Service...\n");

    // Launch the VDS service. 
    hResult = pLoader->LoadService(NULL, &pService);

    // We're done with the Loader interface at this point.
    _SafeRelease(pLoader); 

    if (FAILED(hResult)) goto bail;

    // Wait for service to be ready
    hResult = pService->WaitForServiceReady();
    if (FAILED(hResult)) goto bail;

    printf("VDS Service Loaded\n");

    // Query for virtual disk providers
    hResult = pService->QueryProviders(VDS_QUERY_VIRTUALDISK_PROVIDERS, &pProviderEnum);
    if (FAILED(hResult)) goto bail;

    printf("Querying providers...\n");

    // Iterate over virtual disk providers
    while(1) 
    {
        ulFetched = 0;
        hResult = pProviderEnum->Next(1, &pUnknown, &ulFetched);
        if (FAILED(hResult)) {
            break;
        }
        if (hResult == S_FALSE) {
            break;
        }

        // Cast the current value to a virtual disk provider
        hResult = pUnknown->QueryInterface(IID_IVdsVdProvider, (void **) &pVdProvider); 
        if (FAILED(hResult)) goto bail;

        printf("VDS Virtual Disk Provider Found\n");

        exploreVDiskProvider(pVdProvider);

        _SafeRelease(pVdProvider);

        _SafeRelease(pUnknown);
    }

    getchar();
    return 0;

bail:
    printf("Failed hr=%x\n", hResult);
    return 1;
}

void exploreVDiskProvider(IVdsVdProvider *pVdProvider) {
    HRESULT hResult;
    ULONG ulFetched = 0;

    IEnumVdsObject *pVDiskEnum = NULL;
    IVdsVDisk *pVDisk = NULL;
    IUnknown *pUnknown = NULL;
    IVdsVolume *pVolume = NULL;
    VDS_VDISK_PROPERTIES vdiskProperties = { 0 };
    TCHAR *uuid = NULL;
    IVdsDisk *pDisk = NULL;
    VDS_DISK_PROP diskProperties = { 0 };

    // Query the disks handled by the provider
    hResult = pVdProvider->QueryVDisks(&pVDiskEnum);
    if (FAILED(hResult)) goto bail;

    printf("Querying virtual disks...\n");

    // Iterate over virtual disks
    while(1) 
    {
        ulFetched = 0;
        hResult = pVDiskEnum->Next(1, &pUnknown, &ulFetched);
        if (hResult == S_FALSE) {
            break;
        }

        if (FAILED(hResult)) goto bail;

        // Cast the current value to a disk
        hResult = pUnknown->QueryInterface(IID_IVdsVDisk, (void **) &pVDisk);
        if (FAILED(hResult)) goto bail;

        printf("Virtual disk Found\n");

        // Get the disk's properties and display some of them
        hResult = pVDisk->GetProperties(&vdiskProperties);
        if (FAILED(hResult)) goto bail;

        // Convert the GUID to a string
        UuidToString(&vdiskProperties.Id, (RPC_WSTR *) &uuid);

        // Dump some properties
        printf("-> Disk Id=%ws\n", uuid);
        printf("-> Disk Device Name=%ws\n", vdiskProperties.pDeviceName);
        printf("-> Disk Path=%ws\n", vdiskProperties.pPath);

        // Get the disk instance from the virtual disk
        hResult = pVdProvider->GetDiskFromVDisk(pVDisk, &pDisk);
        if (FAILED(hResult)) goto bail;

        _SafeRelease(pVDisk);

        _SafeRelease(pUnknown);

        // Get the disk's properties and display some of them
        hResult = pDisk->GetProperties(&diskProperties);
        if (FAILED(hResult)) goto bail;

        printf("-> Disk Name=%ws\n", diskProperties.pwszName);
        printf("-> Disk Friendly Name=%ws\n", diskProperties.pwszFriendlyName);
    }

    return;

bail:
    printf("Failed hr=%x\n", hResult);
}

答案 1 :(得分:2)

虚拟磁盘API没有正式的托管.NET包装器。所以你目前有三个选择:

  1. 运行dos命令并抓取您不想做的控制台响应,因为它不是一个稳定的API。

  2. 使用Server 2008中添加的Microsoft.Storage.Vds.dll。您可以使用.NET reflector检查API。但是,这也是非官方的,因为它没有文档记录,因此可能会在服务包等中没有警告地改变。

  3. 使用官方C API 。在官方托管包装类发布并记录之前,我会建议这样做。如上所述,full API documentation拥有您需要的一切。我建议围绕这个API编写一个简化的C包装器dll,它可以满足您的需求,而不是更多。然后,PInvoke你的包装库。

答案 2 :(得分:2)

P /调用GetStorageDependencyInformation将提供严格的VHD API解决方案。虽然此函数不将驱动器号作为输入参数,但是包装器方法会。包装器方法将驱动器号转换为“ \\\\。\\ PhysicalDriveN ”形式的字符串,该字符串将传递给CreateFile,并将生成的句柄传递给{{1} }。类似的包装器方法将输入单个GetStorageDependencyInformation驱动器号 以下代码已从unmanaged example转换为C#:

char

答案 3 :(得分:1)

好像你需要使用IEnumVdsObject,但我不确定你使用的操作系统是什么?

答案 4 :(得分:0)

无法在我的计算机上测试虚拟磁盘。但是你可以尝试WMI查询。

例如。我可以使用以下代码获取分区信息

using System;
using System.Management;
using System.Windows.Forms;

namespace WMISample
{
    public class MyWMIQuery
    {
        public static void Main()
        {
            try
            {
                ManagementObjectSearcher searcher = 
                    new ManagementObjectSearcher("root\\CIMV2", 
                    "SELECT * FROM Win32_DiskPartition"); 

                foreach (ManagementObject queryObj in searcher.Get())
                {
                    Console.WriteLine("-----------------------------------");
                    Console.WriteLine("Win32_DiskPartition instance");
                    Console.WriteLine("-----------------------------------");
                    Console.WriteLine("Access: {0}", queryObj["Access"]);
                    Console.WriteLine("Availability: {0}", queryObj["Availability"]);
                    Console.WriteLine("BlockSize: {0}", queryObj["BlockSize"]);
                    Console.WriteLine("Bootable: {0}", queryObj["Bootable"]);
                    Console.WriteLine("BootPartition: {0}", queryObj["BootPartition"]);
                    Console.WriteLine("Caption: {0}", queryObj["Caption"]);
                    Console.WriteLine("ConfigManagerErrorCode: {0}", queryObj["ConfigManagerErrorCode"]);
                    Console.WriteLine("ConfigManagerUserConfig: {0}", queryObj["ConfigManagerUserConfig"]);
                    Console.WriteLine("CreationClassName: {0}", queryObj["CreationClassName"]);
                    Console.WriteLine("Description: {0}", queryObj["Description"]);
                    Console.WriteLine("DeviceID: {0}", queryObj["DeviceID"]);
                    Console.WriteLine("DiskIndex: {0}", queryObj["DiskIndex"]);
                    Console.WriteLine("ErrorCleared: {0}", queryObj["ErrorCleared"]);
                    Console.WriteLine("ErrorDescription: {0}", queryObj["ErrorDescription"]);
                    Console.WriteLine("ErrorMethodology: {0}", queryObj["ErrorMethodology"]);
                    Console.WriteLine("HiddenSectors: {0}", queryObj["HiddenSectors"]);
                    Console.WriteLine("Index: {0}", queryObj["Index"]);
                    Console.WriteLine("InstallDate: {0}", queryObj["InstallDate"]);
                    Console.WriteLine("LastErrorCode: {0}", queryObj["LastErrorCode"]);
                    Console.WriteLine("Name: {0}", queryObj["Name"]);
                    Console.WriteLine("NumberOfBlocks: {0}", queryObj["NumberOfBlocks"]);
                    Console.WriteLine("PNPDeviceID: {0}", queryObj["PNPDeviceID"]);

                    if(queryObj["PowerManagementCapabilities"] == null)
                        Console.WriteLine("PowerManagementCapabilities: {0}", queryObj["PowerManagementCapabilities"]);
                    else
                    {
                        UInt16[] arrPowerManagementCapabilities = (UInt16[])(queryObj["PowerManagementCapabilities"]);
                        foreach (UInt16 arrValue in arrPowerManagementCapabilities)
                        {
                            Console.WriteLine("PowerManagementCapabilities: {0}", arrValue);
                        }
                    }
                    Console.WriteLine("PowerManagementSupported: {0}", queryObj["PowerManagementSupported"]);
                    Console.WriteLine("PrimaryPartition: {0}", queryObj["PrimaryPartition"]);
                    Console.WriteLine("Purpose: {0}", queryObj["Purpose"]);
                    Console.WriteLine("RewritePartition: {0}", queryObj["RewritePartition"]);
                    Console.WriteLine("Size: {0}", queryObj["Size"]);
                    Console.WriteLine("StartingOffset: {0}", queryObj["StartingOffset"]);
                    Console.WriteLine("Status: {0}", queryObj["Status"]);
                    Console.WriteLine("StatusInfo: {0}", queryObj["StatusInfo"]);
                    Console.WriteLine("SystemCreationClassName: {0}", queryObj["SystemCreationClassName"]);
                    Console.WriteLine("SystemName: {0}", queryObj["SystemName"]);
                    Console.WriteLine("Type: {0}", queryObj["Type"]);
                }
            }
            catch (ManagementException e)
            {
                MessageBox.Show("An error occurred while querying for WMI data: " + e.Message);
            }
        }
    }
}

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