Display_D_HP/TeamAAS-VM/Controls/PictureDisplayControl.xaml

<UserControl x:Class="TeamAAS_VP.Controls.PictureDisplayControl"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:local="clr-namespace:TeamAAS_VP.Controls"
             mc:Ignorable="d">
    <Grid>
        <ScrollViewer x:Name="Sv"
                      HorizontalScrollBarVisibility="Auto"
                      VerticalScrollBarVisibility="Auto"
                      Background="#242424">
            <Viewbox x:Name="Box"
                     Stretch="Uniform"
                     Margin="10"
                     MouseWheel="Viewbox_MouseWheel"
                     PreviewMouseLeftButtonDown="Viewbox_PreviewMouseLeftButtonDown"
                     PreviewMouseLeftButtonUp="Viewbox_PreviewMouseLeftButtonUp"
                     PreviewMouseMove="Viewbox_PreviewMouseMove">
                <Viewbox.RenderTransform>
                    <MatrixTransform>
                        <MatrixTransform.Matrix>
                            <Matrix OffsetX="0"
                                    OffsetY="0" />
                        </MatrixTransform.Matrix>
                    </MatrixTransform>
                </Viewbox.RenderTransform>
                <Grid>
                    <Image x:Name="Img"></Image>
                    <!--<Border BorderBrush="Green"
                            BorderThickness="1" />-->
                </Grid>
            </Viewbox>
        </ScrollViewer>
    </Grid>
</UserControl>