Msvm_ImageManagementService 类的 CreateVirtualFloppyDisk 方法

  • 项目

创建虚拟软盘文件。

语法

uint32 CreateVirtualFloppyDisk(
  [in]  string              Path,
  [out] CIM_ConcreteJob REF Job
);

参数

路径 [in]

类型： 字符串

一个指定新文件位置的完全限定路径。

作业 [out]

类型： CIM_ConcreteJob

如果任务) 完成，对作业 (的引用可以为 Null 。

返回值

类型： uint32

此方法可以返回以下值之一。

已完成，无错误 (0)

方法参数已选中 - 作业已启动 (4096)

( 32768) 失败

拒绝访问 (32769)

不支持 (32770)

状态未知 (32771)

超时 (32772)

参数 (32773) 无效

系统正在使用 (32774)

此操作的无效状态 (32775)

数据类型 (32776) 不正确

系统 ( 32777) 不可用

内存不足 (32778)

(32779) 找不到文件

备注

UAC 筛选可能会限制对 Msvm_ImageManagementService 类的访问。 有关详细信息，请参阅 用户帐户控制和 WMI。

示例

以下 C# 示例创建虚拟软盘文件。 可以在 V2) (虚拟化示例的常用实用工具 中找到引用的实用工具。

using System;
using System.Management;

namespace HyperVSamples
{
    class CreateVFD
    {
        static void CreateVirtualFlopy(string vhdPath)
        {
            ManagementScope scope = new ManagementScope(@"root\virtualization\v2", null);
            ManagementObject imageService = Utility.GetServiceObject(scope, "Msvm_ImageManagementService");

            ManagementBaseObject inParams = imageService.GetMethodParameters("CreateVirtualFloppyDisk");
            inParams["Path"] = vhdPath;
            ManagementBaseObject outParams = imageService.InvokeMethod("CreateVirtualFloppyDisk", inParams, null);
            if ((UInt32)outParams["ReturnValue"] == ReturnCode.Started)
            {
                if (Utility.JobCompleted(outParams, scope))
                {
                    Console.WriteLine("{0} was created successfully.", inParams["Path"]);
                }
                else
                {
                    Console.WriteLine("Unable to create {0}", inParams["Path"]);
                }
            }

            inParams.Dispose();
            outParams.Dispose();
            imageService.Dispose();
        }

        static void Main(string[] args)
        {
            if (args != null && args.Length != 1)
            {
                Console.WriteLine("Usage: CreateVFD path");
                return;
            }
            CreateVirtualFlopy(args[0]);
        }
    }
}

以下 Visual Basic Scripting Edition (VBScript) 示例创建虚拟软盘文件。

option explicit 

dim objWMIService
dim managementService
dim fileSystem


const JobStarting = 3
const JobRunning = 4
const JobCompleted = 7
const wmiStarted = 4096

const method = "CreateVirtualFloppyDisk"
Main()

'-----------------------------------------------------------------
' Main
'-----------------------------------------------------------------
Sub Main()

    dim computer, objArgs, vfdPath

    set fileSystem = Wscript.CreateObject("Scripting.FileSystemObject")

    computer = "."
    set objWMIService = GetObject("winmgmts:\\" & computer & "\root\virtualization\v2")
    set managementService = objWMIService.ExecQuery("Select * from Msvm_ImageManagementService").ItemIndex(0)

    set objArgs = WScript.Arguments
    if WScript.Arguments.Count = 1 then
       vfdPath = objArgs.Unnamed.Item(0)
    else
       WScript.Echo "usage: cscript CreateVFD.vbs VFDFilePath "
       WScript.Quit(1)
    end if

    if CreateVirtualFloppyDisk(vfdPath) then
        WriteLog "Done"
        WScript.Quit(0)
    else
        WriteLog "CreateVFD failed"
        WScript.Quit(1)
    end if

End Sub

'-----------------------------------------------------------------
' Execute CreateVirtualFloppyDisk method
'-----------------------------------------------------------------
Function CreateVirtualFloppyDisk(vfdPath)
    WriteLog Format1("Function CreateVirtualFloppyDisk({0})",  vfdPath)
    
    dim objInParam, objOutParams

    CreateVirtualFloppyDisk = false

    set objInParam = managementService.Methods_("CreateVirtualFloppyDisk").InParameters.SpawnInstance_()
    objInParam.Path = vfdPath

    set objOutParams = managementService.ExecMethod_("CreateVirtualFloppyDisk", objInParam)

    if (WMIMethodStarted(objOutParams)) then
        if (WMIJobCompleted(objOutParams)) then
            WriteLog Format1("VHD {0} was created successfully", vfdPath)
            CreateVirtualFloppyDisk = true
        end if
    end if

End Function


'-----------------------------------------------------------------
' Handle wmi return values
'-----------------------------------------------------------------
Function WMIMethodStarted(outParam)
    WriteLog "Function WMIMethodStarted"
    
    dim wmiStatus
    
    WMIMethodStarted = false

    if Not IsNull(outParam) then
        wmiStatus = outParam.ReturnValue

        if  wmiStatus = wmiStarted then
            WMIMethodStarted = true
        else
            WriteLog Format2("Failed to create VFD {0} ConcreteJob with error {1}", vfdPath, wmiStatus)
        end if
   end if

End Function

'-----------------------------------------------------------------
' Handle wmi Job object
'-----------------------------------------------------------------
Function WMIJobCompleted(outParam)
    WriteLog "Function WMIJobCompleted"
    dim WMIJob, jobState

    set WMIJob = objWMIService.Get(outParam.Job)

    WMIJobCompleted = true

    jobState = WMIJob.JobState

    while jobState = JobRunning or jobState = JobStarting
        WriteLog Format1("In progress... {0}% completed.",WMIJob.PercentComplete)
        WScript.Sleep(1000)
        set WMIJob = objWMIService.Get(outParam.Job)
        jobState = WMIJob.JobState
    wend

    if (jobState <> JobCompleted) then
        WriteLog Format1("ErrorCode:{0}", WMIJob.ErrorCode)
        WriteLog Format1("ErrorDescription:{0}", WMIJob.ErrorDescription)
        WMIJobCompleted = false
    end if

End Function

'-----------------------------------------------------------------
' Create the console log files.
'-----------------------------------------------------------------
Sub WriteLog(line)
    dim fileStream
    set fileStream = fileSystem.OpenTextFile(".\CreateVFD.log", 8, true)
    WScript.Echo line
    fileStream.WriteLine line
    fileStream.Close

End Sub

'------------------------------------------------------------------------------
' The string formatting functions to avoid string concatenation.
'------------------------------------------------------------------------------
Function Format2(myString, arg0, arg1)
    Format2 = Format1(myString, arg0)
    Format2 = Replace(Format2, "{1}", arg1)
End Function

'------------------------------------------------------------------------------
' The string formatting functions to avoid string concatenation.
'------------------------------------------------------------------------------
Function Format1(myString, arg0)
    Format1 = Replace(myString, "{0}", arg0)
End Function

要求

要求 值
最低受支持的客户端
 Windows 8 [仅限桌面应用]
最低受支持的服务器
 Windows Server 2012 [仅限桌面应用]
命名空间
 Root\Virtualization\V2
MOF
WindowsVirtualization.V2.mof
DLL
Vmms.exe

另请参阅

CIM_ConcreteJob

Msvm_ImageManagementService