C#

Tristan Rhodes wrote:

Instead, raise the events, and supply a delegate to the application Form, Form.Invoke(myDelegate)

class TCPSocket
{
    public event ConnectedEventHandler Connected;

    private Control user;

    public TCPSocket(...) { ... }

    public TCPSocket(..., Control user)
    {
        ...
        this.user = user;
    }

    private void RaiseConnectedEvent(IPEndPoint ep)
    {
        if (Connected != null)
        {
            if (user != null)
                user.Invoke(Connected, ep);
            else
                Connected(ep);
        }
    }
}

<br />
	private void RaiseConnectedEvent(IPEndPoint ep)<br />
	{<br />
		if (Connected != null)<br />
		{<br />
		Connected(ep);<br />
		}<br />
	}<br />

<br />
class MyForm<br />
{<br />
	TCPSocket socket;<br />
	Control myControl;<br />
<br />
	// Handles socket.Connected event<br />
	private void SocketEventHandler(object sender, SocketEventArgs e)<br />
	{<br />
    // Handle Here (This will run on the executing thread NOT the GUI thread)<br />
<br />
    // Add the RunGuiThing delegate to the form invoker, this will<br />
    // run the desired delegate on the form / control creation thread.<br />
    me.Invoke(RunGuiThing);<br />
  }<br />
<br />
// GUI Handler<br />
  private void RunGuiThing()<br />
  {<br />
    // Update GUI control things here (This will be run on the GUI thread)<br />
    myControl.BackgroundColor = Color.Green;<br />
  }<br />
}<br />
<br />

<br />
class TCPSocket<br />
{<br />
    public event ConnectedEventHandler Connected;<br />
    <br />
    private Control user;<br />
<br />
    public TCPSocket(...) { ... }<br />
<br />
    public TCPSocket(..., Control user)<br />
    {<br />
        ...<br />
        this.user = user;<br />
    }<br />
<br />
    // Handles the Socket.Connected event<br />
    private void RaiseConnectionEvent(IPEndPoint ep)<br />
    {<br />
        if (user != null)<br />
          user.Invoke(this.Invoker, new object[]{ep});<br />
        else<br />
          this.OnRaiseConnectedEvent(ep);<br />
    }<br />
    <br />
    // Event Initializer<br />
    protected virtual void OnRaiseConnectedEvent(IPEndPoint ep)<br />
    {<br />
        if (Connected != null)<br />
        {<br />
          Connected(this, ep);<br />
        }<br />
    }<br />
    <br />
    // Invoker function to supply as a delegate<br />
    private void Invoker(IPEndPoint ep)<br />
    {<br />
        OnRaiseConnectedEvent(ep)<br />
    }<br />
}<br />