How to show a topmost window without get the focus?

[mcthesw]

I have a method that shows a window, which is called by a Timer. I want to display the ClockWindow every 30 minutes. However, when the window is created, it gets the focus and interrupts my full-screen application. How can I prevent this from happening?

Here is the method I am using:

Dispatcher.UIThread.Invoke(() =>
{
    new ClockWindow().Show();
});

ClockWindow.axaml:

<Window xmlns="https://github.com/avaloniaui"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        mc:Ignorable="d" d:DesignWidth="340" d:DesignHeight="100"
        Width="300"
        Height="100"
        x:Class="TestAvaMvvm.Views.ClockWindow"
        TransparencyLevelHint="AcrylicBlur"
        ExtendClientAreaToDecorationsHint="True"
        ExtendClientAreaChromeHints="NoChrome"
        ExtendClientAreaTitleBarHeightHint="-1"
        SystemDecorations="BorderOnly"
        Focusable="False"
        Title="ClockWindow"
        xmlns:vm="using:TestAvaMvvm.ViewModels"
        x:DataType="vm:ClockWindowViewModel"
        WindowStartupLocation="Manual"
        Position="0,120"
        Topmost="True">
    <Design.DataContext>
        <vm:ClockWindowViewModel />
    </Design.DataContext>
    <Panel>
        <ExperimentalAcrylicBorder IsHitTestVisible="False">
            <ExperimentalAcrylicBorder.Material>
                <ExperimentalAcrylicMaterial
                    BackgroundSource="Digger"
                    TintColor="Black"
                    TintOpacity="0.1"
                    MaterialOpacity="0.1" />
            </ExperimentalAcrylicBorder.Material>
        </ExperimentalAcrylicBorder>
        <TextBlock Foreground="White" FontSize="65"
               HorizontalAlignment="Center" VerticalAlignment="Center"
               TextDecorations="Underline"
               Text="{Binding CurrentTime }"
               >
        </TextBlock>
    </Panel>
</Window>

[Pratham95VP]

try this

 Dispatcher.UIThread.Invoke(() =>
 {
     var window = new ClockWindow();
     window.ShowActivated = false;          
     window.Show();
 });

or

<Window .... ShowActivated="False" ...></Window>

[mcthesw]

Thank you! It's what I want.