Dispatcher thread infinite loop

Question

I created a new window in a separate dispatcher

Dispatcher dispatcher = null;
var newWindowThread = new Thread(() =>
{
    MainWindow window = new MainWindow();
    window.ShowDialog();
});

newWindowThread.SetApartmentState(ApartmentState.STA);
newWindowThread.IsBackground = true;
newWindowThread.Start();
while (dispatcher == null)
{
    Thread.Sleep(10);
    dispatcher = Dispatcher.FromThread(newWindowThread);
}

and then using this dispatcher I can Invoke some actions, but in this case this window is modal, I don't like it and I need a separate window which is not modal.

When I use Show() instead of ShowDialog() then execution goes to the end and my dispatcher will not work.
How can I put it in a infinite loop?
But tread needs to be active and response to Invoke().

Though I can't be 100% sure on this, I think you're going to need `Application.Run(new MainWindow());` in the `Thread` instead of what you have. — Mike Perrenoud, Jan 03 '14 at 14:21
Whatever you want to do (try to explain that), this is not the right way. — H H, Jan 03 '14 at 14:30

score 0 · Accepted Answer · edited Mar 30 '17 at 10:30

0

I have found a solution:

var newWindowThread = new Thread(() =>
{
    MainWindow window = new MainWindow();
    window.Show();
    window.Closed += window_Closed; //here we have method which will shutdown current Dispatcher when window is closed
    Dispatcher.Run();
});

Still don't know exactly how Dispatcher.Run(); works, but it does what I need.

edited Mar 30 '17 at 10:30

Lahiru

1,428
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answered Jan 04 '14 at 09:34

Vladimir Kruglov

196
1
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1

So you think it works but you don't know how or why? Feel confident to go forward? – H H Jan 04 '14 at 12:29

Dispatcher thread infinite loop

1 Answers1