Share via

Msvm_Keyboard 类的 TypeText 方法

  • 项目

模拟一系列类型化字符。 这等效于为字符串中的每个字符调用 PressKey ，后跟 ReleaseKey 。

语法

uint32 TypeText(
  [in] string asciiText
);

parameters

asciiText [in]

类型： 字符串

要键入的 ASCII 或 Unicode 字符系列。 此字符串的最大长度取决于字符串中的字符类型。

字符串类型 最大字符数
ASCII
 512
Unicode
 256 到 512，具体取决于字符串中的代理项对数。

返回值

类型： uint32

返回值为零表示成功。 返回值 1 表示输入字符串中不可翻译字符导致的失败。 所有其他非零值表示修改密钥状态失败。

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 ( 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)

备注

UAC 筛选可能会限制对 Msvm_Keyboard 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# 示例模拟键入文本。 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 TypeTextClass
    {
        static ManagementObject GetComputerKeyboard(ManagementObject vm)
        {
            ManagementObjectCollection keyboardCollection = vm.GetRelated
            (
                "Msvm_Keyboard",
                "Msvm_SystemDevice",
                null,
                null,
                "PartComponent",
                "GroupComponent",
                false,
                null
            );

            ManagementObject keyboard = null;

            foreach (ManagementObject instance in keyboardCollection)
            {
                keyboard = instance;
                break;
            }

            return keyboard;
        }

        static void TypeText(string vmName, string text)
        {
            ManagementScope scope = new ManagementScope(@"root\virtualization\v2", null);
            ManagementObject vm = Utility.GetTargetComputer(vmName, scope);
            ManagementObject keyboard = GetComputerKeyboard(vm);

            ManagementBaseObject inParams = keyboard.GetMethodParameters("TypeText");

            inParams["asciiText"] = text;

            ManagementBaseObject outParams = keyboard.InvokeMethod("TypeText", inParams, null);

            if ((UInt16)outParams["ReturnValue"] == ReturnCode.Completed)
            {
                string.Format("Text {0} was typed on {1}", text, vm["ElementName"]);
            }
            else
            {
                string.Format("Unable to type '{0}' on {1}", text, vm["ElementName"]);
            }

            inParams.Dispose();
            outParams.Dispose();
            keyboard.Dispose();
            vm.Dispose();
        }

        static void Main(string[] args)
        {
            if (args != null && args.Length != 2)
            {
                Console.WriteLine("Usage: TypeText vmName Text");
                return;
            }
            TypeText(args[0], args[1]);
        }
    }
}

以下 Visual Basic Scripting Edition (VBScript) 示例模拟键入文本。

option explicit 

dim objWMIService
dim fileSystem
const wmiSuccessful = 0

Main()

'-----------------------------------------------------------------
' Main routine
'-----------------------------------------------------------------
Sub Main()
    dim computer, objArgs, vmName, computerSystem, text, keyboard
    
    set fileSystem = Wscript.CreateObject("Scripting.FileSystemObject")

    computer = "."
    set objWMIService = GetObject("winmgmts:\\" & computer & "\root\virtualization\v2")

    set objArgs = WScript.Arguments
    if WScript.Arguments.Count = 2 then
       vmName= objArgs.Unnamed.Item(0)
       text = objArgs.Unnamed.Item(1)
    else
       WScript.Echo "usage: cscript TypeText.vbs vmName text"
       WScript.Quit
    end if
    
    set computerSystem = GetComputerSystem(vmName)
    set keyboard = GetComputerKeyboard(computerSystem)

    if TypeText(keyboard, text) then

        WriteLog "Done"
        WScript.Quit(0)
    else
        WriteLog "TypeText operation failed"
        WScript.Quit(1)
    end if

End Sub

'-----------------------------------------------------------------
' Retrieve Msvm_VirtualComputerSystem from base on its ElementName
' 
'-----------------------------------------------------------------
Function GetComputerSystem(vmElementName)
    dim query
    On Error Resume Next
    query = Format1("select * from Msvm_ComputerSystem where ElementName = '{0}'", vmElementName)
    set GetComputerSystem = objWMIService.ExecQuery(query).ItemIndex(0)
    if (Err.Number <> 0) then
        WriteLog Format1("Err.Number: {0}", Err.Number)
        WriteLog Format1("Err.Description:{0}",Err.Description)
        WScript.Quit(1)
    end if
End Function


'-----------------------------------------------------------------
' Retrieve Msvm_Keyboard from given computer system
' 
'-----------------------------------------------------------------
Function GetComputerKeyboard(computerSystem)
    dim query
    On Error Resume Next
    query = Format1("ASSOCIATORS OF {{0}} WHERE resultClass = Msvm_Keyboard", computerSystem.Path_.Path)
    set GetComputerKeyboard = objWMIService.ExecQuery(query).ItemIndex(0)
    if (Err.Number <> 0) then
        WriteLog Format1("Err.Number: {0}", Err.Number)
        WriteLog Format1("Err.Description:{0}",Err.Description)
        WScript.Quit(1)
    end if
End Function

'-----------------------------------------------------------------
' Type the given text to the given keyboard
'-----------------------------------------------------------------
Function TypeText(keyboard, text)
    WriteLog Format2("TypeText({0}, {1})", keyboard.ElementName, text)
    
    dim objInParam, objOutParams

    TypeText = false
    set objInParam = keyboard.Methods_("TypeText").InParameters.SpawnInstance_()
    objInParam.asciiText = text

    set objOutParams = keyboard.ExecMethod_("TypeText", objInParam)

    if objOutParams.ReturnValue = wmiSuccessful then
        WriteLog Format2("'{0}' was typed on {1}", text, keyboard.ElementName)
        TypeText = true
    end if

End Function

'-----------------------------------------------------------------
' Create the console log files.
'-----------------------------------------------------------------
Sub WriteLog(line)
    dim fileStream
    set fileStream = fileSystem.OpenTextFile(".\Typetext.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

Msvm_Keyboard