Disabling of DirectX

using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.DirectX.Direct3D;
using System.Windows.Forms;

namespace DirectXTest
{
    class Program 
    {
       static void Main(string[] args) 
       {
            DeviceType devType = DeviceType.Hardware;

            int adapter = 0;

            foreach(string arg in args)
            {
               if(arg=="deviceType=hardware")
                  devType = DeviceType.Hardware;
               else if(arg=="deviceType=software")
                  devType = DeviceType.Software;
               else if(arg=="deviceType=reference") 
                  devType = DeviceType.Reference; 
                
              if (arg == "adapter=1")
                  adapter = 1;
              if (arg == "adapter=2")
                  adapter = 2; 
              if (arg == "adapter=3")
                  adapter = 3;
           }

          PresentParameters presentParams = new PresentParameters();

          presentParams.Windowed = true;

          presentParams.SwapEffect = SwapEffect.Discard;

          Form frm = new Form();

          Device device =
          new Device(adapter, devType, frm.Handle,                    
          CreateFlags.SoftwareVertexProcessing, presentParams);

          Console.WriteLine("Device has been initialized correctly. 
          Press any key to exit...");

          Console.ReadLine();

       }
    }
}