MainWindow.xaml

<mah:MetroWindow x:Class="MouseBounds.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:mah="http://metro.mahapps.com/winfx/xaml/controls"
        mc:Ignorable="d"
        Closed="MetroWindow_Closed"
        Closing="MetroWindow_Closing"
        Background="#242424"
        Deactivated="MetroWindow_Deactivated"
        MinHeight="200" Height="200" MaxHeight="200"
        MinWidth="400" Width="400" MaxWidth="400"
        Title="MouseBounds" ResizeMode="CanMinimize">
    <Grid Margin="10">
        <StackPanel Orientation="Vertical">
            <ToggleButton x:Name="StateToggle" Content="&lt;&lt;Inactive [F6]&gt;&gt;" FontSize="16" Height="75" Click="StateToggle_Click"/>
            <Rectangle Height="12"/>
            <StackPanel Orientation="Horizontal">
                <Label Content="Active Screen:" Width="95"/>
                <!--<mah:NumericUpDown x:Name="NumericX" Value="1920" Minimum="0" Maximum="1920" Width="91" ValueChanged="NumericX_ValueChanged"/>-->
                <ComboBox x:Name="ComboActiveScreen" Width="91" SelectionChanged="ComboActiveScreen_SelectionChanged"/>
                <Label Content="Keybinding:" Width="95"/>
                <mah:HotKeyBox x:Name="SelectorHotKey" AreModifierKeysRequired="False" Width="91" KeyUp="SelectorHotKey_KeyUp"/>
            </StackPanel>
            <Rectangle Height="4"/>
            <StackPanel Orientation="Horizontal">
                <Label Content="Always On Top:" Width="95"/>
                <!--<mah:NumericUpDown x:Name="NumericY" Value="1080" Minimum="0" Maximum="1080" Width="91" ValueChanged="NumericY_ValueChanged"/>-->
                <CheckBox x:Name="CheckAoT" Width="91" Click="CheckAoT_Click"/>
                <Label Content="Clamp:" Width="95"/>
                <CheckBox x:Name="CheckClamp" Width="91" Click="CheckClamp_Click"/>
            </StackPanel>
        </StackPanel>
    </Grid>
</mah:MetroWindow>