using WebSocket4Net;
WebSocket websocket = new WebSocket("ws://localhost:2012/");
websocket.Opened += new EventHandler(websocket_Opened);
websocket.Error += new EventHandler<ErrorEventArgs>(websocket_Error);
websocket.Closed += new EventHandler(websocket_Closed);
websocket.MessageReceived += new EventHandler(websocket_MessageReceived);
private void websocket_Opened(object sender, EventArgs e)
{
websocket.Send("Hello World!");
}