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.NET Framework 3.5
 InvokeMethod Method (String, Manage...
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This page is specific to
Microsoft Visual Studio 2008/.NET Framework 3.5

Other versions are also available for the following:
.NET Framework Class Library
ManagementObject..::.InvokeMethod Method (String, ManagementBaseObject, InvokeMethodOptions)

Invokes a method on the WMI object. The input and output parameters are represented as ManagementBaseObject objects.

Namespace:  System.Management
Assembly:  System.Management (in System.Management.dll)
Visual Basic (Declaration)
Public Function InvokeMethod ( _
    methodName As String, _
    inParameters As ManagementBaseObject, _
    options As InvokeMethodOptions _
) As ManagementBaseObject
Visual Basic (Usage)
Dim instance As ManagementObject
Dim methodName As String
Dim inParameters As ManagementBaseObject
Dim options As InvokeMethodOptions
Dim returnValue As ManagementBaseObject

returnValue = instance.InvokeMethod(methodName, _
    inParameters, options)
C#
public ManagementBaseObject InvokeMethod(
    string methodName,
    ManagementBaseObject inParameters,
    InvokeMethodOptions options
)
Visual C++
public:
ManagementBaseObject^ InvokeMethod(
    String^ methodName, 
    ManagementBaseObject^ inParameters, 
    InvokeMethodOptions^ options
)
JScript
public function InvokeMethod(
    methodName : String, 
    inParameters : ManagementBaseObject, 
    options : InvokeMethodOptions
) : ManagementBaseObject

Parameters

methodName
Type: System..::.String
The name of the method to execute.
inParameters
Type: System.Management..::.ManagementBaseObject
A ManagementBaseObject holding the input parameters to the method.
options
Type: System.Management..::.InvokeMethodOptions
An InvokeMethodOptions containing additional options for the execution of the method.

Return Value

Type: System.Management..::.ManagementBaseObject
A ManagementBaseObject containing the output parameters and return value of the executed method.

.NET Framework Security

Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

The following example invokes the Win32_Process::Create method to start a new process of Calc.exe.

Visual Basic
Imports System
Imports System.Management

' This sample demonstrates invoking
' a WMI method using parameter objects
Class InvokeMethod
    Public Overloads Shared Function _
        Main(ByVal args() As String) As Integer

        ' Get the object on which the
        ' method will be invoked
        Dim processClass As _
            New ManagementClass("Win32_Process")

        ' Get an input parameters object for this method
        Dim inParams As ManagementBaseObject = _
            processClass.GetMethodParameters("Create")

        ' Fill in input parameter values
        inParams("CommandLine") = "calc.exe"

        ' Execute the method
        Dim outParams As ManagementBaseObject = _
            processClass.InvokeMethod( _
            "Create", inParams, Nothing)

        ' Display results
        ' Note: The return code of the method 
        ' is provided in the "returnValue" property
        ' of the outParams object
        Console.WriteLine( _
            "Creation of calculator process returned: {0}", _
            outParams("returnValue"))
        Console.WriteLine("Process ID: {0}", _
            outParams("processId"))

        Return 0
    End Function
End Class
C#
using System;
using System.Management;

// This sample demonstrates invoking 
// a WMI method using parameter objects
public class InvokeMethod 
{    
    public static void Main() 
    {

        // Get the object on which the method will be invoked
        ManagementClass processClass = 
            new ManagementClass("Win32_Process");

        // Get an input parameters object for this method
        ManagementBaseObject inParams =
            processClass.GetMethodParameters("Create");

        // Fill in input parameter values
        inParams["CommandLine"] = "calc.exe";

        // Execute the method
        ManagementBaseObject outParams =
            processClass.InvokeMethod ("Create",
            inParams, null);

        // Display results
        // Note: The return code of the method is
        // provided in the "returnValue" property
        // of the outParams object
        Console.WriteLine(
            "Creation of calculator process returned: "
            + outParams["returnValue"]);
        Console.WriteLine("Process ID: " 
            + outParams["processId"]);
    }
}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0
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