How to Call a Configuration Manager Object Class Method by Using WMI

Article
10/10/2022

To call a SMS Provider class method, in Configuration Manager, you use the SWbemServices object ExecMethod method to call methods that are defined by the class.

Note

To call a method on an object instance, call the method from the object directly. For example, ObjectInstance.MethodName parameters.

To call a Configuration Manager object class method

Set up a connection to the SMS Provider. For more information, see SMS Provider fundamentals.
Using the SWbemServices you obtain in step one, call Get to get the class definition.
Create the input parameters as a SWbemMethodSet.
Using the SWbemServices object instance, call ExecMethod and specify the class name and input parameters.
Retrieve the method return value from the ReturnValue property in the returned SWbemObject object.

Example

The following example validates a collection rule query by calling the SMS_CollectionRuleQuery class ValidateQuery class method.

For information about calling the sample code, see Calling Configuration Manager Code Snippets.

Sub ValidateQueryRule(connection, wqlQuery)  

    Dim inParams  
    Dim outParams  
    Dim collectionRuleClass  

    On Error Resume Next  

    ' Obtain the class definition object of a SMS_CollectionRuleQuery object.  
    Set collectionRuleClass = connection.Get("SMS_CollectionRuleQuery")  

    If Err.Number<>0 Then  
        Wscript.Echo "Couldn't get collection rule query object"  
        Exit Sub  
    End If  

    ' Set up the in parameter.  
    Set inParams = collectionRuleClass.Methods_("ValidateQuery").InParameters.SpawnInstance_  
    inParams.WQLQuery = wqlQuery  
    If Err.Number<>0 Then  
        Wscript.Echo "Couldn't get in parameters object"  
        Exit Sub  
    End If  

    ' Call the method.  
    Set outParams = _  
        connection.ExecMethod( "SMS_CollectionRuleQuery", "ValidateQuery", inParams)  
    If Err.Number<>0 Then  
        Wscript.Echo "Couldn't run method"  
        Exit Sub  
    End If  

    If outParams.ReturnValue = True Then  
        Wscript.Echo "Valid query"  
    Else   
        WScript.Echo "Not a valid query"  
    End If            
  End Sub

This example method has the following parameters:

Parameter	Type	Description
`connection`	- Managed: SWbemServices	A valid connection to the SMS Provider.
`wqlQuery`	- `String`	A WQL query string. For this example, `SELECT * FROM SMS_R_System` is a valid query.

How to Call a Configuration Manager Object Class Method by Using WMI

To call a Configuration Manager object class method

Example

Compiling the Code

See Also

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