/Visual Studio 2008/VBSL3WriteableBitmap/Screenshot.xaml

<UserControl

    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" x:Class="VBSL3WriteableBitmap.Screenshot"

    mc:Ignorable="d" d:DesignWidth="479" d:DesignHeight="375" Loaded="UserControl_Loaded">

	<UserControl.Resources>

		<Storyboard x:Name="sb" RepeatBehavior="Forever">

			<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="uiElementSource" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[2].(RotateTransform.Angle)" Duration="00:00:00.0010000">

				<EasingDoubleKeyFrame KeyTime="00:00:00" Value="0"/>

			</DoubleAnimationUsingKeyFrames>

			<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="uiElementSource" Storyboard.TargetProperty="(UIElement.Projection).(PlaneProjection.RotationX)">

				<EasingDoubleKeyFrame KeyTime="00:00:00" Value="0"/>

				<EasingDoubleKeyFrame KeyTime="00:00:05" Value="360"/>

			</DoubleAnimationUsingKeyFrames>

			<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="uiElementSource" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)">

				<EasingDoubleKeyFrame KeyTime="00:00:00" Value="1"/>

				<EasingDoubleKeyFrame KeyTime="00:00:05" Value="0.5"/>

			</DoubleAnimationUsingKeyFrames>

			<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="uiElementSource" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleY)">

				<EasingDoubleKeyFrame KeyTime="00:00:00" Value="1"/>

				<EasingDoubleKeyFrame KeyTime="00:00:05" Value="0.5"/>

			</DoubleAnimationUsingKeyFrames>

		</Storyboard>

	</UserControl.Resources>

	<StackPanel x:Name="LayoutRoot" Background="White">

		<TextBlock Text="WriteableBitmap is also capable of creating screenshots from non-bitmap images. However, there're some limitations. In the following sample, the above rectangle is a vector graphic (in a Canvas). The below one is a screenshot created rapidly using the Canvas. As you can see, the ScaleTransform and ShaderEffect are respected, but the Projection is lost." TextWrapping="Wrap"/>

		<Canvas x:Name="uiElementSource" Height="300" Width="300" HorizontalAlignment="Center" RenderTransformOrigin="0.5,0.5">

			<Canvas.Projection>

				<PlaneProjection/>

			</Canvas.Projection>

			<Canvas.RenderTransform>

				<TransformGroup>

					<ScaleTransform/>

					<SkewTransform/>

					<RotateTransform/>

					<TranslateTransform/>

				</TransformGroup>

			</Canvas.RenderTransform>

			<Rectangle Fill="Red" Height="200" Width="200" Canvas.Left="50" Canvas.Top="50">

				<Rectangle.Effect>

					<DropShadowEffect Color="#FF0095FF"/>

				</Rectangle.Effect>

			</Rectangle>

		</Canvas>

		<Image x:Name="img" Height="300" Width="300" Stretch="None"/>

		<TextBlock Text="Save the screenshot to a bmp file. Note the Projection is lost, and all empty pixels are rendered in black (000000), due to the limitation of WriteableBitmap." TextWrapping="Wrap"/>

		<Button x:Name="SaveFileButton" Content="Save" Click="SaveFileButton_Click"/>

	</StackPanel>

</UserControl>