MainWindow.xaml

<Window x:Class="WriteableBitmapExBlitSample.Wpf.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow">
    <Grid x:Name="LayoutRoot" Width="640" Height="480">
        <StackPanel>
            <TextBlock HorizontalAlignment="Center" FontSize="14" Text="WriteableBitmapEx - WPF WriteableBitmap Extensions - Blit Sample" />
            <Border Width="640" Height="480" Background="Black">
                <Image x:Name="image" Width="640" Height="480"/>
            </Border>
        </StackPanel>

        <Border Margin="20,20" Background="#55FFFFFF" VerticalAlignment="Top" HorizontalAlignment="Left">
            <TextBlock Name="FpsCounter" FontFamily="Verdana" FontSize="22" ></TextBlock>
        </Border>
    </Grid>
</Window>