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Animated SkewTransform Example

<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"   xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"   x:Class="Microsoft.Samples.Graphics.Transforms.AnimatedSkewTransformExample"   WindowTitle="Animated SkewTransform Example">   <StackPanel Orientation="Horizontal">      <StackPanel Margin="10">         <Canvas Width="250" Height="250">           <Rectangle             Height="50" Width="50" Fill="Red" Stroke="Blue" StrokeThickness="2" Canvas.Left="100" Canvas.Top="100">             <Rectangle.RenderTransform>               <SkewTransform x:Name="MyAnimatedSkewTransform" CenterX="25" CenterY="25" AngleX="0" AngleY="0" />             </Rectangle.RenderTransform>           </Rectangle>           <Rectangle Height="50" Width="50" Stroke="#99000000"             StrokeDashArray="4,1" StrokeThickness="2"             Canvas.Left="100" Canvas.Top="100" />                     </Canvas>       <StackPanel Orientation="Horizontal">         <Button Name="startButton" Margin="0,0,2,0">Start</Button>         <Button Name="stopButton">Stop</Button>         <StackPanel.Triggers>           <EventTrigger SourceName="startButton" RoutedEvent="Button.Click">             <BeginStoryboard Name="myBeginStoryboard">               <Storyboard>                 <DoubleAnimation                    Storyboard.TargetName="MyAnimatedSkewTransform"                    Storyboard.TargetProperty="AngleX"                    From="0" To="180" Duration="0:0:4" />                 <DoubleAnimation                    Storyboard.TargetName="MyAnimatedSkewTransform"                    Storyboard.TargetProperty="AngleY"                    From="0" To="180" Duration="0:0:4" />                            </Storyboard>             </BeginStoryboard>           </EventTrigger>           <EventTrigger SourceName="stopButton" RoutedEvent="Button.Click">             <StopStoryboard BeginStoryboardName="myBeginStoryboard" />           </EventTrigger>                   </StackPanel.Triggers>               </StackPanel>       </StackPanel>   </StackPanel> </Page>