MainWindow.xaml

<Window x:Class="MediaSensor.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        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"
        xmlns:local="clr-namespace:MediaSensor"
        mc:Ignorable="d"
        Title="Media sensor" 
        Width="260"
        SizeToContent="Height"
        ResizeMode="CanMinimize"
        >
    <DockPanel Margin="15" LastChildFill="False">
        <Button x:Name="OverrideButton"
                    Margin="5 0 0 0" 
                    DockPanel.Dock="Right" 
                    Width="60"
                    Padding="4 1" Click="OnOverrideButtonClick">
            Toggle
        </Button>
        <StackPanel>
            <TextBlock x:Name="OverridingText"
                       Margin="0 0 0 8">
                Switch: Auto
            </TextBlock>
            <TextBlock x:Name="StatusText" 
                   TextWrapping="Wrap" 
                   ToolTip="{Binding Path=Text, ElementName=StatusText}">
            Initializing...
            </TextBlock>
        </StackPanel>
    </DockPanel>
</Window>