C#

<br />
float x = 0.5f;<br />
float y = 1.0f;<br />
<br />
private void ProcessInput(float amountOfMovement)<br />
        {<br />
            Vector3 moveVector = new Vector3();<br />
<br />
            KeyboardState keys = Keyboard.GetState();<br />
            if (keys.IsKeyDown(Keys.Right))<br />
                moveVector.X += amountOfMovement;<br />
            if (keys.IsKeyDown(Keys.Left))<br />
                moveVector.X -= amountOfMovement;<br />
            if (keys.IsKeyDown(Keys.Down))<br />
                moveVector.Y -= amountOfMovement;<br />
            if (keys.IsKeyDown(Keys.Up))<br />
                moveVector.Y += amountOfMovement;<br />
<br />
            if (keys.IsKeyDown(Keys.Add))<br />
                x += 0.1f;<br />
                y += 0.1f;<br />
            if (keys.IsKeyDown(Keys.Subtract))<br />
                x -= 0.1f;<br />
                y -= 0.1f;<br />
<br />
            Matrix cameraRotation = Matrix.CreateRotationX(cameraAngles.X) * Matrix.CreateRotationZ(cameraAngles.Z);<br />
            cameraPosition += Vector3.Transform(moveVector, cameraRotation);<br />
<br />
            MouseState currentMouseState = Mouse.GetState();<br />
            if (currentMouseState.X != previousMouseState.X)<br />
                cameraAngles.Z -= amountOfMovement / 80.0f * (currentMouseState.X - previousMouseState.X);<br />
            if (currentMouseState.Y != previousMouseState.Y)<br />
                cameraAngles.X -= amountOfMovement / 80.0f * (currentMouseState.Y - previousMouseState.Y);<br />
            Mouse.SetPosition(Window.ClientBounds.Width / 2, Window.ClientBounds.Height / 2);<br />
        }

public ServerConnection(IPAddress this_machine, UInt16 port)<br />
                    : base()<br />
                {<br />
                    this.init_connection = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);<br />
<br />
                    this.ip_end_point = new IPEndPoint(this_machine, (int)port);<br />
                    this.init_connection.Bind(this.ip_end_point);<br />
                    this.init_connection.Listen(2);<br />
<br />
                    this.init_connection.BeginAccept(new AsyncCallback(this.OnDataControlConnect), this.init_connection);<br />
                }<br />
<br />
                private void OnDataControlConnect(IAsyncResult ar)<br />
                {<br />
                    this.data_control = (Socket)ar.AsyncState;<br />
                    this.data_control.BeginReceive(this.data_control_buffer, 0, 4, SocketFlags.None, new AsyncCallback(this.OnDataControlReceive), this.data_control);<br />
<br />
                    this.init_connection.BeginAccept(new AsyncCallback(this.OnDataConnect), this.init_connection);<br />
                }

<br />
      //Item doesn't exist so add it and display as the first item<br />
            if (!this.bsRedialedNumbers.Contains(this.txtDetails.Text))<br />
            {<br />
                DataRowView drv;<br />
                drv = (DataRowView)this.bsRedialedNumbers.AddNew();<br />
                drv["Name"] = this.txtDisplay.Text;<br />
                drv["Number"] = this.txtDisplay.Text;<br />
                <br />
                //drv.EndEdit();<br />
            }<br />
            else //Item already exists so just move it to the top of the list.<br />
            {<br />
                //Move the item to the top of the combo box.<br />
                DataRowView drv;<br />
                drv = (DataRowView)this.bsRedialedNumbers;<br />
                int index = this.bsRedialedNumbers.Find("Number", txtDetails.Text);       <br />
            }<br />

class ThreadSafe {
  List <string> list = new List <string>();
 
  void Test() {
    lock (list) {
      list.Add ("Item 1");
      ...

lock (this) { ... }
or:

lock (typeof (Widget)) { ... }    // For protecting access to statics