![]() Timeout = ManagementOptions.InfiniteTimeout,Īuthentication = AuthenticationLevel. Private static ConnectionOptions GetConnectionOptions()ĬonnectionOptions connOptions = new ConnectionOptions() ReturnImmediately = true, //Pseudo-async result Rewindable = false, //Forward only query => no caching However, if a company does not already have a local (or network) printer that. Helper methods: private static EnumerationOptions GetEnumerationOptions(bool DeepScan)ĮnumerationOptions mOptions = new EnumerationOptions() An example of this is the private construction site that has restricted access. Using (ManagementBaseObject moResult = moPrinter.InvokeMethod("PrintTestPage", moParams, moMethodOpt)) Using (ManagementBaseObject moParams = moPrinter.GetMethodParameters("PrintTestPage")) InvokeMethodOptions moMethodOpt = new InvokeMethodOptions(null, ManagementOptions.InfiniteTimeout) If (moPrinter is null) throw new InvalidOperationException("Printer not found") ![]() ManagementObject moPrinter = moSearcher.Get().OfType().FirstOrDefault() Using (ManagementObjectSearcher moSearcher = new ManagementObjectSearcher(mScope, mQuery, mOptions)) MQuery.QueryString += string.IsNullOrEmpty(PrinterName) SelectQuery mQuery = new SelectQuery("SELECT * FROM Win32_Printer") The generated Lorem Ipsum is therefore always free. It uses a dictionary of over 200 Latin words, combined with a handful of model sentence structures, to generate Lorem Ipsum which looks reasonable. ManagementScope mScope = new connOptions) All the Lorem Ipsum generators on the Internet tend to repeat predefined chunks as necessary, making this the first true generator on the Internet. String machineName = string.IsNullOrEmpty(MachineName) ? Environment.MachineName : MachineName Public static uint PrintTestPage(string PrinterName, string MachineName)ĬonnectionOptions connOptions = GetConnectionOptions() ĮnumerationOptions mOptions = GetEnumerationOptions(false) Sample call to Print a test page using the default printer in the local machine: var result = PrintTestPage(null, null) The method returns 0 if successful and throws an exception if the Printer is not found. ![]() 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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