MainPage.xaml

<UserControl x:Class="Matrix3DProjectionSimple.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
    Width="500">
    <StackPanel>
        <TextBlock Margin="10" TextWrapping="Wrap">Click on the image to apply the projection. This sample uses a simple Matrix3D matrix to transform an object in the X and Y directions.</TextBlock>
    <Grid x:Name="LayoutRoot" >
        <!-- <SnippetMatrix3DProjectionSimple> -->
        <!-- When you click on the image, the projection is applied. -->
        <Image PointerPressed="ApplyProjection" x:Name="BeachImage" Source="guy_by_the_beach.jpg"
               Width="200"/>
        <!-- </SnippetMatrix3DProjectionSimple> -->
    </Grid>
    </StackPanel>
</UserControl>