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 //해당 Assembly에는 internal 접근 가능

[assembly: System.Runtime.CompilerServices.InternalsVisibleTo("LogAnalyzerTests")]

//강력한 이름으로 접근

[assembly: InternalsVisibleTo("LogAnalyzerTests, PublicKey=002400000480000094" +

                              "0000000602000000240000525341310004000" +

                              "001000100bf8c25fcd44838d87e245ab35bf7" +

                              "3ba2615707feea295709559b3de903fb95a93" +

                              "3d2729967c3184a97d7b84c7547cd87e435b5" +

                              "6bdf8621bcb62b59c00c88bd83aa62c4fcdd4" +

                              "712da72eec2533dc00f8529c3a0bbb4103282" +

                              "f0d894d5f34e9f0103c473dce9f4b457a5dee" +

                              "fd8f920d8681ed6dfcb0a81e96bd9b176525a" +

                              "26e0b3")]

sm = (SensorManager)this.getSystemService(Context.SENSOR_SERVICE);

        gyroSensor = sm.getDefaultSensor(Sensor.TYPE_ORIENTATION);

        gyroListener = new SensorEventListener() {

                       @Override

                       public void onSensorChanged(SensorEvent event) {

                              // TODO Auto-generated method stub

                              float[] values = event.values;

                              //float x= values[0];

                              //float y = values[1];

                              //float z = values[2];

                       }

                       @Override

                       public void onAccuracyChanged(Sensor sensor, int accuracy) {

                              // TODO Auto-generated method stub

                       }

               };

import android.app.Activity;

import android.content.Context;

import android.graphics.Canvas;

import android.graphics.Paint;

import android.graphics.Paint.Style;

import android.hardware.Sensor;

import android.hardware.SensorEvent;

import android.hardware.SensorEventListener;

import android.hardware.SensorManager;

import android.os.Bundle;

import android.view.View;

public class CompassActivity extends Activity implements SensorEventListener {

  Float azimut;  // View to draw a compass

  public class CustomDrawableView extends View {

    Paint paint = new Paint();

    public CustomDrawableView(Context context) {

      super(context);

      paint.setColor(0xff00ff00);

      paint.setStyle(Style.STROKE);

      paint.setStrokeWidth(2);

      paint.setAntiAlias(true);

    };

    protected void onDraw(Canvas canvas) {

      int width = getWidth();

      int height = getHeight();

      int centerx = width/2;

      int centery = height/2;

      canvas.drawLine(centerx, 0, centerx, height, paint);

      canvas.drawLine(0, centery, width, centery, paint);

      // Rotate the canvas with the azimut     

      if (azimut != null)

        canvas.rotate(-azimut*360/(2*3.14159f), centerx, centery);

      paint.setColor(0xff0000ff);

      canvas.drawLine(centerx, -1000, centerx, +1000, paint);

      canvas.drawLine(-1000, centery, 1000, centery, paint);

      canvas.drawText("N", centerx+5, centery-10, paint);

      canvas.drawText("S", centerx-10, centery+15, paint);

      paint.setColor(0xff00ff00);

    }

  }

  CustomDrawableView mCustomDrawableView;

  private SensorManager mSensorManager;

  Sensor accelerometer;

  Sensor magnetometer;

  protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    mCustomDrawableView = new CustomDrawableView(this);

    setContentView(mCustomDrawableView);    // Register the sensor listeners

    mSensorManager = (SensorManager)getSystemService(SENSOR_SERVICE);

      accelerometer = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);

    magnetometer = mSensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD);

  }

  protected void onResume() {

    super.onResume();

    mSensorManager.registerListener(this, accelerometer, SensorManager.SENSOR_DELAY_UI);

    mSensorManager.registerListener(this, magnetometer, SensorManager.SENSOR_DELAY_UI);

  }

  protected void onPause() {

    super.onPause();

    mSensorManager.unregisterListener(this);

  }

  public void onAccuracyChanged(Sensor sensor, int accuracy) {  }

  float[] mGravity;

  float[] mGeomagnetic;

  public void onSensorChanged(SensorEvent event) {

    if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER)

      mGravity = event.values;

    if (event.sensor.getType() == Sensor.TYPE_MAGNETIC_FIELD)

      mGeomagnetic = event.values;

    if (mGravity != null && mGeomagnetic != null) {

      float R[] = new float[9];

      float I[] = new float[9];

      boolean success = SensorManager.getRotationMatrix(R, I, mGravity, mGeomagnetic);

      if (success) {

        float orientation[] = new float[3];

        SensorManager.getOrientation(R, orientation);

        azimut = orientation[0]; // orientation contains: azimut, pitch and roll

      }

    }

    mCustomDrawableView.invalidate();

  }

}

    class Man

    {

    }

    class Program

    {

        static void Main(string[] args)

        {

            TestStringReference();

            TestWeakReference();

            Console.ReadKey();

        }

        /// <summary>

        /// WeakReference Class를 이용해 약한 참조 테스트

        /// 참조 중인 개체는 null이됨

        /// </summary>

        private static void TestWeakReference()

        {

            Man m = new Man();

            WeakReference refMan = new WeakReference(m); //약한참조

            m = null;

            GC.Collect();

            Console.WriteLine("약한 참조 원본: {0}", (m == null ? "죽었음" : "살았음"));

            Console.WriteLine("약한 참조 참조: {0}", (refMan.Target == null ? "죽었음" : "살았음"));

        }

        /// <summary>

        /// 강한 참조 테스트

        /// 참조 중인 개체는 null이 되지 않음

        /// </summary>

        private static void TestStringReference()

        {

            Man m = new Man();

            Man refMan = m; //강한 참조

            m = null;

            GC.Collect();

            Console.WriteLine("강한 참조 원본: {0}", (m == null ? "죽었음" : "살았음"));

            Console.WriteLine("강한 참조 참조: {0}", (refMan == null ? "죽었음" : "살았음"));

        }

    }

Registry.SetValue(@"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\MAIN\FeatureControl\FEATURE_BROWSER_EMULATION",

  Application.ProductName + ".exe", 10001); 

HKEY_LOCAL_MACHINE (or HKEY_CURRENT_USER)
   SOFTWARE
      Microsoft
         Internet Explorer
            Main
               FeatureControl
                  FEATURE_BROWSER_EMULATION
                     contoso.exe = (DWORD) 00009000