Setting the Default Printer in .NET

The following C# code shows how to use WMI to query printers information, set and get default printer.

public bool SetDefaultPrinter()
{
    System.Management.ManagementObjectSearcher search = 
                   default(System.Management.ManagementObjectSearcher);
    System.Management.ManagementObjectCollection results = 
                   default(System.Management.ManagementObjectCollection);
    System.Management.ManagementObject printer = 
                   default(System.Management.ManagementObject);


    search = 
     new System.Management.ManagementObjectSearcher("select * from win32_printer");
    results = search.Get();
    //Get Default Printer
    System.Management.ManagementObject defaultPrinter = null;
    foreach (System.Management.ManagementObject foundPrinter in results)
    {
        System.Management.PropertyDataCollection 
              propertyDataCollection = foundPrinter.Properties;

         if ((bool)foundPrinter["Default"]) // DEFAULT PRINTER
         {
              System.Diagnostics.Debug.WriteLine(foundPrinter["Name"]);
              System.Diagnostics.Debug.WriteLine(foundPrinter["Location"]);
         }
     }


     //Sets new default Printer
     foreach (System.Management.ManagementObject foundPrinter in results)
     {
         System.Diagnostics.Debug.Print(foundPrinter["Name"].ToString());
         if (foundPrinter["Name"].Equals("PDFCreator"))
         {
             System.Management.ManagementBaseObject outParams = 
                   foundPrinter.InvokeMethod("SetDefaultPrinter", null, null);
             if (outParams == null)
                 System.Diagnostics.Debug.WriteLine("Unable to set default printer");
             Int32 retVal = (int)(uint)outParams.Properties["ReturnValue"].Value;
             if (retVal == 0)
                return true;
             else
                return false;
         }
     }

    return false;

}