String MachineName: the name of a Machine in the Network or null to use the LocalMachine name. String PrinterName: the name of a specific Printer or null to use the default Printer. This gives means to correct/adapt the code to specific contexts, when necessary.Īlso, the helper methods here can be reused to initialize any other WMI query.įor example, a wrong Impersonation option, will result in an exception ( 0x80070005: (E_ACCESSDENIED)) when connecting to the WMI Scope or when the WMI query is executed.Ī description of the PrintTestPage method parameters: Now, this method might look verbose, but I think it's important, when calling WMI methods, that the Management Options and Scopes are defined correctly.
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