Low quality picture produced by snapshot. Wpf

See more:

WPF

The program below creates a snapshot with the content of the main window of the application itself. However the quality of the produced picture is not equivalent to the print screen program of windows 10, which produces the desired result.

Here is a snapshot of the program running, taken with the print screen program of windows 10, zoomed in:

https://ibb.co/wz4pb4d

And here is the snapshot that the program below is producing, zoomed in:

https://ibb.co/DLsNb8X

Is there something we can try to improve the quality of the snapshot that this program produse?

I tried Bitmap Encoder but is the same result , just without transparency, (Don't need to have transparency) also tried some other Pixel Formats but I get errors, only Pbgra32 seems to work as the program is.

Thanks in advance

What I have tried:

<pre> if (e.Key == Key.P)
            {
                //Set scrollviewer's Content property as UI element to capture full content
                FrameworkElement element = UxVisual as FrameworkElement;
                Uri path = new Uri(@"C:\Users\4gry\Desktop\screenshot.png");
                CaptureScreen(element, path);
            }

        }
            public void CaptureScreen(FrameworkElement source, Uri destination)
            {
            RenderOptions.SetEdgeMode(source, EdgeMode.Aliased);
            try
                {
                    double Height, ActualHeight, Width, ActualWidth;

                    Height = ActualHeight = source.RenderSize.Height;
                    Width = ActualWidth = source.RenderSize.Width;

                    //Specification for target bitmap like width/height pixel etc.
                    RenderTargetBitmap renderTarget = new RenderTargetBitmap((int)ActualWidth, (int)ActualHeight, 96, 96, PixelFormats.Pbgra32);
                    //creates Visual Brush of UIElement
                    VisualBrush visualBrush = new VisualBrush(source);

                    DrawingVisual drawingVisual = new DrawingVisual();
                    using (DrawingContext drawingContext = drawingVisual.RenderOpen())
                    {
                        //draws image of element
                        drawingContext.DrawRectangle(visualBrush, null, new Rect(source.RenderSize));
                    }
                    

                    //renders image
                    renderTarget.Render(drawingVisual);

                    //PNG encoder for creating PNG file
                    PngBitmapEncoder encoder = new PngBitmapEncoder();
                    encoder.Frames.Add(BitmapFrame.Create(renderTarget));
                    using (FileStream stream = new FileStream(destination.LocalPath, FileMode.Create, FileAccess.Write))
                    {
                        encoder.Save(stream);
                    }
                }
                catch (Exception e)
                {
                    MessageBox.Show(e.ToString());
                }
            }

XAML

<Window x:Name="mainwindow" x:Class="WpfApp2.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:local="clr-namespace:WpfApp2"
        mc:Ignorable="d"
        Title="mainwindow" Height="397.265" Width="603.147" Icon="images2/Untitled-1.gif" ResizeMode="CanMinimize" WindowStartupLocation="Manual" AutomationProperties.Name="Grid" IsTabStop="True" KeyDown="Mainwindow_KeyDown" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="0">
    <Border x:Name="UxVisual" BorderBrush="Black" BorderThickness="1" HorizontalAlignment="Left" Height="367" Margin="10,0,0,0" VerticalAlignment="Top" Width="583">
        <Grid Margin="0,0,0,13">

            <Image Stretch="None" Source="images2/screenshot copy.gif" IsEnabled="False" Margin="0,0,-28,0" HorizontalAlignment="Left" Width="625" Height="347" VerticalAlignment="Top"/>

            <Image x:Name="linevertical" HorizontalAlignment="Left" Height="343" Margin="108,76,-21,0" VerticalAlignment="Top" Width="705" Source="images2/Untitled-1.gif" Stretch="None" Visibility="Hidden" RenderTransformOrigin="0.46,0.52"/>
            <Image x:Name="lineo" HorizontalAlignment="Left" Height="171" Margin="173,76,0,0" VerticalAlignment="Top" Width="193" Source="images2/Untitled-3.gif" Stretch="None" Visibility="visible"/>
            <Image HorizontalAlignment="Left" Height="100" Margin="10,16,0,0" VerticalAlignment="Top" Width="189" Source="images2/Untitled-1.gif" Stretch="None" Visibility="hidden"/>
            <Image HorizontalAlignment="Left" Height="100" Margin="73,10,0,0" VerticalAlignment="Top" Width="100" Source="images2/Untitled-3.gif" Stretch="None" Visibility="visible"/>
            <Button HorizontalAlignment="Left" Margin="173,61,0,0" VerticalAlignment="Top" Width="225" Height="121" Opacity="0"  Click="Button_Click"/>
            <Button Content="" HorizontalAlignment="Left" Margin="464,247,0,0" VerticalAlignment="Top" Width="194" Height="144" Opacity="0" Click="Button_Click_1"/>
            <Image HorizontalAlignment="Left" Height="100" Margin="428,-11,-40,0" VerticalAlignment="Top" Width="206" Stretch="None" Source="images2/Untitled-1.gif"/>

        </Grid>
    </Border>
</Window>