MainPage.xaml

<Page
    x:Class="RC_FPV_GUI.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    KeyDown="HandleKeyDown"
    KeyUp="HandleKeyUp"
    Loaded="Page_Loaded">

    <Grid x:Name="Grid" Background="SlateGray">
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="1*"/>
            <ColumnDefinition Width="0.5*"/>
            <ColumnDefinition Width="0.5*"/>
            <ColumnDefinition Width="0.5*"/>
            <ColumnDefinition Width="1*"/>
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height="3*"/>
            <RowDefinition Height="0.5*"/>
            <RowDefinition Height="0.5*"/>
        </Grid.RowDefinitions>
        <Border Grid.ColumnSpan="5" Background="Aqua" />
        <Button x:Name="W_Button" Content="W" Click="W_Button_Click" Grid.Column="2" Grid.Row="1" VerticalAlignment="Center" HorizontalAlignment="Center"/>
        <Button x:Name="A_Button" Content="A" Click="A_Button_Click" Grid.Column="1" Grid.Row="2" VerticalAlignment="Center" HorizontalAlignment="Center"/>
        <Button x:Name="S_Button" Content="S" Click="S_Button_Click" Grid.Column="2" Grid.Row="2" VerticalAlignment="Center" HorizontalAlignment="Center"/>
        <Button x:Name="D_Button" Content="D" Click="D_Button_Click" Grid.Column="3" Grid.Row="2" VerticalAlignment="Center" HorizontalAlignment="Center"/>
    </Grid>
</Page>