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Recommended Way to execute on UI Thread


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I know I read the solution somewhere some time ago but I can't remember where..


What is the recommended way to execute a method on the UI Thread, e.g. for showing a MessageBox?


Im currently going with

Process process = Process.GetCurrentProcess();
Form form = Form.FromHandle(process.MainWindowHandle) as Form;
form?.Invoke(new Action(() =>
    MessageBox.Show("Some Message");

But this seems a bit ugly..


My batch Image Processor: https://imagenator.codeplex.com

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void ShowMessage(string msg, string caption)
        new System.Threading.SendOrPostCallback(delegate(object state)
            // This line runs on the UI thread and not on the Render thread
            System.Windows.Forms.MessageBox.Show(msg, caption);
        }), null);


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