Csharp/C Sharp/Development Class/System Registry

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Get value from Registry

<source lang="csharp"> /* C# Programming Tips & Techniques by Charles Wright, Kris Jamsa Publisher: Osborne/McGraw-Hill (December 28, 2001) ISBN: 0072193794

  • /

namespace nsRegKey {

   using System;
   using Microsoft.Win32;
   public class RegKeyclsMain
   {
       static public void Main ()
       {
           int x;
           string RegID =
                   "HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\";
           for (x = 0; x < 4; ++x)
           {
               string ValueID = RegID + x;
               RegistryKey key = Registry.LocalMachine;
               Object cpuType;
               object cpuSpeed;
               key = key.OpenSubKey(ValueID);
               if (key == null)
                   break;
               cpuType = key.GetValue("VendorIdentifier");
               cpuSpeed = key.GetValue("~MHz");
               Console.WriteLine ("Processor {0} is {1} {2}",
                                  x,
                                  cpuSpeed == null ? "speed unknown"
                                     : cpuSpeed.ToString() + " MHz",
                                  cpuType == null ? "type unknown"
                                     : cpuType.ToString());
               key.Close ();
           }
           Console.WriteLine ("\r\nThis computer has {0} {1}",
                              x, x == 1 ? "processor" : "processors");
       }
   }

}

      </source>