Re: Monitoring Threads

SWF.Timer can be used all by itself -- it has no reliance on a control.
Start up a new Windows Forms app and then paste this code in:

        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);

            Timer tmr = new Timer();
            tmr.Interval = 1000;
            tmr.Tick += new EventHandler(tmr_Tick);
            tmr.Enabled = true;
        }

        void tmr_Tick(object sender, EventArgs e)
        {
            this.Text = DateTime.Now.ToLongTimeString();
        }

As for multiple UI threads -- I have heard of this but didn't realize
.NET supported it (fully).  I would think encountering multiple UI
threads would be very rare.

--
Patrick Steele
http://weblogs.asp.net/psteele



-----Original Message-----
From: Discussion forum for developers using Windows Forms to build apps
and controls [mailto:[email protected]] On Behalf Of
Fabian Schmied
Sent: Thursday, March 29, 2007 8:08 AM
To: [email protected]
Subject: Re: [DOTNET-WINFORMS] Monitoring Threads


> If you're sure you'll have a message pump running, then using the
> System.Windows.Forms timer will ensure the Elapsed event (if that's
> what event is fired for that timer -- can't recall) fires on the UI
> thread.

Yes, but this only works if the System.Windows.Forms.Timer is _added_ to
a control. SWF.Timer cannot be used without control (or similar
component contrainer), can it?

> And you could always check the Application.MessageLoop property before

> doing anything and throw some kind of exception to let consumers of
> your component know that they must call your component from a UI
> thread.

That's true, but keep in mind there might be more than one UI thread.

Fabian