Display a form during cpu intensive task

[PlanetEarthSoftware]

Is there a way to force Eto to layout and render a Form during a ᴄᴘᴜ intensive task; like Invalidate() for a Drawable.

Minimal example attached (65 lines total).

Thanks in advance for any assistance.

EtoCpuIntensiveTest.zip

[cwensley]

To keep UI usable, any CPU intensive stuff needs to be done on separate threads. Using async/await works really well for this, for example this is how I would recommend doing something like this:

    private async void MainForm_Shown(object sender, EventArgs e)
    {
        MessageForm messageForm = new("busy", "test message");
        messageForm.Closeable = false;
        messageForm.Minimizable = false;
        messageForm.Maximizable = false;
        messageForm.Show();

        await Task.Run(async () =>
        {
            await Task.Delay(10000);
            
            // do actual CPU intensive work here.
        });

        messageForm.Close();
    }

[PlanetEarthSoftware]

I have found Eto.Forms.Application.Instance.RunIteration(); which does enough of that that I require.

It would be nice if I could stop the menu and tool bars being active when RunIteration() runs, as if a modal dialog was open.