VideoBrush Class
Paints an area with video content.
System.Windows.DependencyObject
System.Windows.Media.Brush
System.Windows.Media.TileBrush
System.Windows.Media.VideoBrush
Namespace: System.Windows.Media
Assembly: System.Windows (in System.Windows.dll)
The VideoBrush type exposes the following members.
| Name | Description | |
|---|---|---|
![]() ![]() | AlignmentX | Gets or sets the horizontal alignment of content in the TileBrush base tile. (Inherited from TileBrush.) |
![]() ![]() | AlignmentY | Gets or sets the vertical alignment of content in the TileBrush base tile. (Inherited from TileBrush.) |
![]() ![]() | Dispatcher | Gets the Dispatcher this object is associated with. (Inherited from DependencyObject.) |
![]() ![]() | Opacity | Gets or sets the degree of opacity of a Brush. (Inherited from Brush.) |
![]() ![]() | RelativeTransform | Gets or sets the transformation that is applied to the brush using relative coordinates. (Inherited from Brush.) |
![]() ![]() | SourceName | Gets or sets the name of the MediaElement to use as the source of the VideoBrush. |
![]() ![]() | Stretch | Gets or sets a value that specifies how the content of this TileBrush stretches to fit its tiles. (Inherited from TileBrush.) |
![]() ![]() | Transform | Gets or sets the transformation that is applied to the brush. (Inherited from Brush.) |
| Name | Description | |
|---|---|---|
![]() ![]() | CheckAccess | Determines whether the calling thread has access to this object. (Inherited from DependencyObject.) |
![]() ![]() | ClearValue | Clears the local value of a dependency property. (Inherited from DependencyObject.) |
![]() ![]() | Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
![]() ![]() | Finalize | Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.) |
![]() ![]() | GetAnimationBaseValue | Returns any base value established for a Silverlight dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject.) |
![]() ![]() | GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
![]() ![]() | GetType | Gets the Type of the current instance. (Inherited from Object.) |
![]() ![]() | GetValue | Returns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject.) |
![]() ![]() | MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
![]() ![]() | ReadLocalValue | Returns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject.) |
![]() ![]() | SetSource(CaptureSource) | Sets the source of the VideoBrush using a video capture source |
![]() ![]() | SetSource(MediaElement) | Sets the source of the VideoBrush using a media file source from an intermediary MediaElement control. |
![]() ![]() | SetValue | Sets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject.) |
![]() ![]() | ToString | Returns a string that represents the current object. (Inherited from Object.) |
A detailed walkthrough of how to use a VideoBrush is documented in VideoBrush Overview.
A VideoBrush is a type of Brush object similar to a LinearGradientBrush or an ImageBrush. However, instead of painting an area with a solid color, a gradient, or an image, it paints an area with video content. This video content is provided by a MediaElement. Just like the other brush types, you can use a VideoBrush to paint the Fill of a shape such as a Rectangle or the geometry contents of a Path, the Background of a Canvas, or the Foreground of a TextBlock or Run.
To use a VideoBrush, you create a MediaElement, apply the VideoBrush to the object that you want to paint, and set the VideoBrush object's SourceName property to the name of the MediaElement that you created.
Silverlight 4 introduces an overload of SetSource(CaptureSource) that is used for webcam scenarios. For this scenario, you set the source video for a VideoBrush using a CaptureSource. For more information on obtaining a CaptureSource and webcam scenarios, see CaptureSource and VideoSink.
The following example uses a VideoBrush to paint the Foreground of a TextBlock.
<Canvas xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> <MediaElement x:Name="butterflyMediaElement" Source="sampleMedia/Butterfly.wmv" IsMuted="True" Opacity="0.0" IsHitTestVisible="False" /> <TextBlock Canvas.Left="5" Canvas.Top="30" FontFamily="Verdana" FontSize="120" FontWeight="Bold" TextWrapping="Wrap" Text="Video"> <!-- Paint the text with video. --> <TextBlock.Foreground> <VideoBrush SourceName="butterflyMediaElement" Stretch="UniformToFill" /> </TextBlock.Foreground> </TextBlock> </Canvas>
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.





