MainWindow.xaml

<Window
    x:Class="OSharp.Animation.WPF.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:local="clr-namespace:OSharp.Animation.WPF"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    Title="MainWindow"
    Width="640"
    Height="480"
    Loaded="Window_Loaded"
    mc:Ignorable="d">
    <Grid Background="Black">
        <Grid.ColumnDefinitions>
            <ColumnDefinition />
            <ColumnDefinition />
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition />
            <RowDefinition />
        </Grid.RowDefinitions>
        <!--<Image
            Grid.RowSpan="2"
            Grid.ColumnSpan="2"
            Source="C:\Program Files (x86)\osu!\Songs\1241412 Ariabl'eyeS - Kegare naki Bara Juuji\p0.jpg"
            Stretch="UniformToFill" />-->
        <Border
            Grid.Row="0"
            Grid.Column="0"
            Grid.ColumnSpan="2"
            BorderBrush="Black"
            BorderThickness="0,0,0,1"
            Visibility="Hidden" />
        <Border
            Grid.Row="0"
            Grid.RowSpan="2"
            Grid.Column="0"
            BorderBrush="Black"
            BorderThickness="0,0,1,0"
            Visibility="Hidden" />
        <Viewbox
            Grid.Row="0"
            Grid.RowSpan="2"
            Grid.Column="0"
            Grid.ColumnSpan="2">
            <Canvas
                Width="854"
                Height="480"
                RenderOptions.BitmapScalingMode="HighQuality">
                <Canvas
                    x:Name="MainCanvas"
                    Canvas.Left="107"
                    Width="640"
                    Height="480" />
            </Canvas>
        </Viewbox>
        <Button
            Grid.Row="1"
            Grid.Column="0"
            Margin="5"
            Padding="20,5"
            HorizontalAlignment="Left"
            VerticalAlignment="Bottom"
            Click="Button_Click"
            Content="TEST" />
    </Grid>
</Window>