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POCreating Scratch card effect on Windows Phone c# xaml
 

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  1. POCreating Scratch card effect on Windows Phone c# xaml
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    <p>I would like to create a scratch card effect on the Windows Phone. However my current solution seem sluggish and the scratch effect look weird(refer to the screenshot below). The experience is very poor as compared to those that i had seen on iOS.</p> <p><img src="https://i.stack.imgur.com/hzsoe.jpg" alt="enter image description here"></p> <p>Would appreciate if someone could guide me toward it. Below are my current code.</p> <pre><code> &lt;Grid Width="Auto" Height="Auto" Background="Black"&gt; &lt;Viewbox Margin="0" HorizontalAlignment="Center" VerticalAlignment="Center"&gt; &lt;Grid Height="60" Width="60" Background="White"&gt; &lt;InkPresenter x:Name="inkP" Width="60" Height="60"&gt; &lt;InkPresenter.Background&gt; &lt;ImageBrush Stretch="Fill" ImageSource="/Assets/image.png"/&gt; &lt;/InkPresenter.Background&gt; &lt;Grid Height="60" Width="60"&gt; &lt;TextBlock x:Name="lblsecretText" HorizontalAlignment="Center" TextWrapping="Wrap" Text="LOL" VerticalAlignment="Center" Width="60" Foreground="Black" TextAlignment="Center" FontSize="5.333"/&gt; &lt;/Grid&gt; &lt;/InkPresenter&gt; &lt;/Grid&gt; &lt;/Viewbox&gt; &lt;/Grid&gt; Stroke s; int mycol = 0; public MainPage() { InitializeComponent(); inkP.MouseMove += new MouseEventHandler(inkP_MouseMove); for (int i = 0; i &lt; 60; i++) { for (int l = 0; l &lt; 60; l++) { Stroke bigStroke = new Stroke(); bigStroke.StylusPoints.Add(new StylusPoint(i, l)); inkP.Strokes.Add(bigStroke); } } } StylusPoint _lastPoint; void inkP_MouseMove(object sender, MouseEventArgs e) { StylusPointCollection pointErasePoints = e.StylusDevice.GetStylusPoints(inkP); pointErasePoints.Insert(0, new StylusPoint(e.GetPosition(inkP).X, e.GetPosition(inkP).Y)); //Compare collected stylus points with the ink presenter strokes and store the intersecting strokes. StrokeCollection hitStrokes = inkP.Strokes.HitTest(pointErasePoints); if (hitStrokes.Count &gt; 0) { foreach (Stroke hitStroke in hitStrokes) { inkP.Strokes.Remove(hitStroke); } } _lastPoint = pointErasePoints[pointErasePoints.Count - 1]; } </code></pre>
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    1. USLZH
    1. USLZH
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    1. COHave you debugged/profiled your code to determine where your code is spending most of its time?
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      1. POCreating Scratch card effect on Windows Phone c# xaml
      1. USSven Grosen
    2. COi did, however the effect just isn't right
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      1. POCreating Scratch card effect on Windows Phone c# xaml
      1. USLZH
 

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