PowerToys/src/modules/launcher/PowerLauncher/MainWindow.xaml

<Window x:Class="PowerLauncher.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:wox="clr-namespace:PowerLauncher"
        xmlns:vm="clr-namespace:Wox.ViewModel;assembly=Wox"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
        mc:Ignorable="d"
        xmlns:xaml="clr-namespace:Microsoft.Toolkit.Wpf.UI.XamlHost;assembly=Microsoft.Toolkit.Wpf.UI.XamlHost"
        Title="PowerLaunch"
        Topmost="True"
        SizeToContent="Height"
        ResizeMode="NoResize"
        WindowStyle="None"
        WindowStartupLocation="Manual"
        AllowDrop="True"
        ShowInTaskbar="False"
        Icon="Images/app.png"
        AllowsTransparency="True"
        Loaded="OnLoaded"
        Initialized="OnInitialized"
        Closing="OnClosing"
        Drop="OnDrop"
        LocationChanged="OnLocationChanged"
        Deactivated="OnDeactivated"
        Background="Transparent"
        Visibility="{Binding MainWindowVisibility, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
        d:DataContext="{d:DesignInstance vm:MainViewModel}">
    <Grid Width="720">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="Auto"/>
        </Grid.RowDefinitions>
        <Border x:Name="SearchBoxBorder" Margin="10" Grid.Row="0" BorderThickness="4" CornerRadius="4">
            <Border.Effect>
                <DropShadowEffect BlurRadius="12" Opacity="0.3" ShadowDepth="4" />
            </Border.Effect>
            <xaml:WindowsXamlHost  InitialTypeName="PowerLauncher.UI.LauncherControl" ChildChanged="WindowsXamlHostTextBox_ChildChanged" />
        </Border>
        <Border Grid.Row="1" Name="myElement" Background="Transparent" Height="10"/>
        <Border x:Name="ListBoxBorder" Margin="10" Grid.Row="2" BorderThickness="4" CornerRadius="4" Visibility="{Binding Results.Visbility}">
            <Border.Effect>
                <DropShadowEffect BlurRadius="12" Opacity="0.3" ShadowDepth="4" />
            </Border.Effect>
            <xaml:WindowsXamlHost PreviewMouseDown="WindowsXamlHost_PreviewMouseDown" InitialTypeName="PowerLauncher.UI.ResultList"  ChildChanged="WindowsXamlHostListView_ChildChanged"  />
        </Border>
    </Grid> 
    <Window.InputBindings>
        <KeyBinding Key="Escape" Command="{Binding EscCommand}" />
        <KeyBinding Key="Enter" Command="{Binding OpenResultCommand}"></KeyBinding>
    </Window.InputBindings>
</Window>